How Do You Create an Index for a Nonfiction Book?

An index helps readers locate specific people, places, ideas, events and examples without reading the entire book again. It is especially valuable in nonfiction titles that readers may consult repeatedly for research, professional guidance or reference.

Learning how to index a book involves more than collecting repeated words and listing their page numbers. A useful index interprets the content from the reader’s point of view. It identifies the subjects people are likely to search for, groups related information and directs readers towards the most relevant discussions.

A professional index may include:

• Main entries
• Subentries
• Cross-references
• Names
• Places
• Organisations
• Events
• Concepts
• Case studies
• Technical terms
• Tables and illustrations
• Page ranges

The index should usually be created after the interior layout is final because page references depend on stable pagination. If chapters are moved or the type size changes, the page numbers may no longer be accurate.

Authors can prepare an index themselves, hire a professional indexer or use specialist software as part of the process. Software may help organise entries, but human judgement is still required to decide what belongs in the index and how readers are likely to search for it.

What Is a Book Index?

A book index is an alphabetical guide to the significant subjects covered in a publication.

It usually appears near the end of the book and connects terms with the pages where those subjects are discussed.

For example:

attachment theory, 42–47, 118
adult relationships, 121–124
childhood development, 44–46
trauma and, 132–135

Bowlby, John, 43, 119

caregiving, 15–18, 45–48, 109–112
emotional availability, 110–112
inconsistent, 47–48

A reader interested in attachment theory can see the main discussion and several related topics without scanning every chapter.

A strong index is selective. It does not attempt to include every word in the manuscript.

Which Books Usually Need an Index?

Indexes are common in:

• History
• Biography
• Business
• Psychology
• Politics
• Science
• Health
• Education
• Professional manuals
• Academic trade books
• Local history
• Religious studies
• Reference books
• Practical guides
• Detailed memoirs with historical content

An index may be less necessary for:

• Novels
• Short story collections
• Poetry
• Simple picture books
• Brief inspirational books
• Highly linear narratives intended to be read once from beginning to end

A memoir may still benefit from an index when it covers:

• Historical events
• Public figures
• Organisations
• Several locations
• Political movements
• Professional subjects
• A large family network

The decision should reflect how readers are likely to use the book.

An Index Is Different from a Contents Page

A contents page shows the book’s broad structure.

It normally lists:

• Parts
• Chapters
• Major sections
• Appendices

An index provides detailed subject access across the entire book.

For example, a business book may have a chapter called:

Chapter 5: Managing Conflict

The index may include separate entries for:

• Active listening
• Avoidance
• Difficult conversations
• Feedback
• Mediation
• Performance concerns
• Workplace conflict

A reader looking for mediation may not know that the relevant discussion appears in the conflict chapter.

The index provides another route into the material.

An Index Is Different from a Glossary

A glossary defines specialised words.

An index shows where those words and subjects are discussed.

A book can contain both.

For example:

Glossary entry:
Cash flow: The movement of money into and out of a business.

Index entry:
cash flow, 22–27, 63
forecasting, 68–72
seasonal variation, 25–26
warning signs, 64–66

The glossary explains the term. The index helps the reader find its applications throughout the book.

An Index Is Not a Search-Engine Keyword List

Authors sometimes confuse indexing with search optimisation.

An index is created for a reader using the printed or fixed-layout book.

It should not be built by repeating:

• Marketing keywords
• Retail categories
• Search phrases
• Website tags
• Advertising terms

A phrase used for author website SEO may be useful online but unnecessary in the index if the book does not discuss it meaningfully.

Similarly, an important concept may need an index entry even when it is not a popular search keyword.

The index serves the content and reader first.

Decide Whether the Index Is Part of the Publishing Plan

Indexing should be considered early even though the final work happens late.

The publishing schedule should allow time for:

• Final typesetting
• Index preparation
• Author review
• Corrections
• Updated page references
• Proofreading
• Final file approval

Do not finish the entire book production and then discover that there is no time to create an index before the announced publication date.

A professional indexer may need several weeks, depending on:

• Book length
• Subject complexity
• Number of illustrations
• Technical terminology
• Deadline
• Availability

Include indexing in the original production budget and timetable.

Complete the Manuscript Before Indexing

The text should be editorially stable before the index is created.

Complete:

• Developmental revision
• Line editing
• Copyediting
• Fact-checking
• Permissions
• Illustration placement
• Final typesetting
• Pagination

Major changes made after indexing can invalidate many references.

For example, deleting three pages from Chapter 2 may change every later page number.

Minor proofreading corrections may not affect the index when they do not change pagination. Larger changes can require a complete update.

A Manuscript Assessment Comes Earlier

A professional manuscript assessment UK authors commission normally happens before detailed editing and production.

The assessment may identify whether the book needs:

• Better chapter organisation
• More consistent terminology
• Clearer headings
• Additional examples
• Reduced repetition
• A stronger reader journey
• A future index

An assessor may recommend an index when the book contains many:

• People
• Places
• Concepts
• Laws
• Historical events
• Case studies
• Technical terms

However, the assessor should not create the final index at this stage because the page layout is not stable.

The assessment helps shape a book that can later be indexed clearly.

Complete Nonfiction Fact-Checking First

Professional nonfiction book fact checking should be substantially complete before indexing.

The index may contain:

• Names
• Dates
• Organisations
• Historical terminology
• Scientific concepts
• Professional titles
• Place names

An incorrect spelling in the manuscript can create a misleading index entry.

For example, a person listed under two spellings may appear as two separate entries.

The author should verify:

• Full names
• Preferred names
• Titles
• Accents and diacritics
• Organisations
• Dates
• Technical terms
• Historical labels

The index itself should also receive a factual review.

A correctly formatted entry is still wrong when it identifies the wrong person or subject.

Complete Sensitivity Review Before Indexing

A sensitivity reader UK authors hire may recommend changes to terminology, identity labels or descriptions.

These changes should be completed before the final index is prepared.

The index may need thoughtful decisions involving:

• Racial or ethnic terminology
• Disability language
• Religious identities
• Gender identity
• Historical labels
• Colonial names
• Indigenous names
• Mental-health terminology
• Migration status

Use terms that are:

• Accurate
• Respectful
• Consistent with the book
• Likely to be recognised by readers
• Appropriate to the historical context

Where a historical term differs from current language, the index may use a cross-reference.

For example:

Asperger syndrome. See autism spectrum conditions

or:

Ceylon. See also Sri Lanka

The exact choice depends on the book’s period, context and editorial approach.

Wait Until Pagination Is Stable

The final index should be created from the typeset pages, not from the original Word manuscript.

Pagination can change because of:

• Font
• Trim size
• Line spacing
• Margins
• Images
• Tables
• Chapter openings
• Page breaks
• Footnotes
• Heading treatment

The indexer should receive the final page proofs, usually as a searchable PDF.

The file should contain:

• Final page numbers
• Complete text
• Captions
• Tables
• Notes
• Appendices
• Front and back matter where relevant

If late corrections change pagination, the index must be checked again.

Decide Who Will Create the Index

Possible options include:

• Author
• Professional indexer
• Editor with indexing experience
• Specialist academic indexer
• Publishing team

The author knows the subject deeply, but this can create a disadvantage. Familiarity may make it difficult to predict the words a general reader will use.

A professional indexer brings:

• Reader perspective
• Subject organisation
• Entry selection
• Cross-reference skills
• Consistent style
• Indexing software
• Editorial distance

A specialist may be particularly useful for books involving:

• Medicine
• Law
• Science
• History
• Theology
• Complex biography
• Technical disciplines

Ask whether the indexer has experience with the book’s subject and intended audience.

What Does a Professional Indexer Need?

An indexer may request:

• Final page-proof PDF
• Book title
• Intended audience
• Publisher style guide
• Maximum index length
• Preferred spelling
• Required names or terms
• Existing glossary
• Chapter outline
• Deadline
• File format for delivery
• Special instructions

The author may also provide a short list of important concepts.

This list should guide rather than control the indexer.

Do not send hundreds of required entries before the indexer has read the book. The indexer needs freedom to decide:

• Which terms matter
• Which references are substantial
• Which entries should be combined
• Which cross-references are useful

Understand Main Entries

A main entry is the primary term under which information appears.

Examples include:

• climate change
• Elizabeth I
• financial planning
• migration
• Oxford
• renewable energy
• trauma

Choose terms that readers are likely to search for.

A main entry should be:

• Specific
• Recognisable
• Concise
• Consistent
• Meaningful

Avoid vague entries such as:

• Issues
• Problems
• Important information
• Other examples
• Various methods

These terms do not tell the reader what they will find.

Use Subentries to Organise Large Topics

A main entry with many page references can become difficult to use.

Instead of:

leadership, 4, 7, 12, 18, 22, 24, 31, 35, 44, 51, 59, 63, 72, 78, 82, 90

use:

leadership
communication, 31–35
decision-making, 51–55
ethical, 78–82
first-time managers, 12–18
remote teams, 63–67

Subentries help the reader understand the different contexts.

They should describe meaningful aspects rather than divide references arbitrarily.

Use Page Ranges for Continuous Discussion

When a subject is discussed across several consecutive pages, use a range.

For example:

legal deposit, 86–91

instead of:

legal deposit, 86, 87, 88, 89, 90, 91

A page range suggests a connected discussion.

Separate references may be appropriate when the subject appears briefly in unrelated locations.

Check the publisher’s preferred style for ranges, such as:

• 86–91
• 86–91
• 86–91

The visual dash style should remain consistent.

Do Not Index Every Mention

A name or term should not automatically be indexed every time it appears.

Distinguish between:

Substantial Discussion

The page explains, analyses or develops the subject.

Passing Mention

The term appears briefly without adding useful information.

For example:

“Like many businesses, the company used email.”

This sentence may not justify an entry for “email”.

Indexing every passing mention can produce:

• Long lists of unhelpful references
• Reader frustration
• An unnecessarily large index
• Higher page count
• Increased printing cost

Select references that provide value.

Consider Alternative Reader Terminology

Readers may search for a concept using different words.

Cross-references can guide them.

For example:

job loss. See unemployment

email marketing. See author email lists

self-publishing platforms. See IngramSpark; Kindle Direct Publishing

A cross-reference should direct readers towards the term used as the main entry.

Do not create a cross-reference that sends the reader to another cross-reference.

For example:

writers. See authors

authors. See book creators

This creates unnecessary movement.

Choose one preferred entry and direct alternatives to it.

Use “See” and “See Also” Correctly

See directs the reader from an unused term to the preferred term.

Example:

KDP. See Kindle Direct Publishing

See also connects related entries that each contain useful references.

Example:

book distribution, 122–130. See also libraries; wholesalers

The distinction matters.

A reader following a “See” reference expects the first entry to contain no page numbers.

A “See also” reference suggests additional related information.

Index People Consistently

Personal names are usually inverted by surname.

For example:

Bowlby, John, 42–47
Woolf, Virginia, 18, 55–57

Consider:

• Prefixes
• Titles
• Pseudonyms
• Married names
• Initials
• Royal names
• Religious names
• Historical naming conventions

Use cross-references where readers may search under another name.

For example:

Clemens, Samuel. See Twain, Mark

or:

Mark Twain. See Twain, Mark

Follow the publisher’s style guide for royal, noble and religious names.

Index Organisations Carefully

Use the organisation’s recognised name.

For example:

British Library, 84–89
National Health Service, 142–147
World Health Organization, 201–204

Decide whether common abbreviations need cross-references:

NHS. See National Health Service

If the abbreviation is better known than the full name, the index may use the abbreviation as the main entry.

Be consistent across:

• Main text
• Captions
• Notes
• Index

Index Places According to Reader Expectations

Place entries may include:

• Countries
• Cities
• Regions
• Historic territories
• Buildings
• Rivers
• Institutions

Use qualifiers when names could be ambiguous.

For example:

Cambridge, England, 62–64
Cambridge, Massachusetts, 118

Historical books may need both historical and modern names.

For example:

Bombay. See Mumbai

or:

Mumbai (formerly Bombay), 77–81

The correct form depends on the period and subject.

Index Concepts, Not Only Names

An index made only from proper nouns is often incomplete.

Readers may search for ideas such as:

• Attachment
• Burnout
• Copyright
• Empathy
• Leadership
• Memory
• Migration
• Trauma
• Workplace conflict

Conceptual indexing requires interpretation.

The indexer must understand what the discussion means, not merely which words appear.

A chapter may explore discrimination without using that exact word repeatedly. The topic may still need an index entry.

Index Case Studies and Examples

Case studies may be indexed by:

• Person
• Organisation
• Subject
• Location
• Problem illustrated

For example:

cash-flow planning
case study, Bristol retailer, 72–75

Bristol retailer case study, 72–75

Avoid over-indexing fictional examples when the names are not meaningful to readers.

A practical book may index the problem demonstrated rather than every invented character.

Include Tables, Figures and Illustrations Where Useful

Some publishers distinguish visual references using letters or typographical styling.

For example:

migration patterns, 55, 57f, 60–61
sales forecasts, 82t, 84–86

where:

• f indicates a figure
• t indicates a table

Another style may use italics or bold page numbers.

The method should be explained in the index note if it is not obvious.

Visual references should be included only when they help readers locate useful information.

Coordinate Indexing With the Illustration Brief

A professional book illustration brief should identify:

• Figure titles
• Captions
• Labels
• Image numbers
• Final placement
• Subject keywords
• Permissions
• Cross-references

Consistent figure numbering makes indexing easier.

For example:

• Figure 3.1
• Figure 3.2
• Map 5.1
• Table 7.1

Avoid changing figure names after indexing without updating:

• Contents
• Main text references
• Captions
• Index entries

An illustration may require indexing under both its subject and format.

For example:

Victorian housing, 44–46, 45f

Consider Illustration Costs Before Adding Index Pages

The children’s book illustration cost UK authors budget may not seem connected with indexing, but production costs interact.

An index adds pages.

Additional pages may affect:

• Printing cost
• Spine width
• Cover template
• Retail price
• Binding
• Shipping weight

A heavily illustrated educational children’s book may benefit from a simple index, especially when it covers:

• Animals
• Science
• History
• Geography
• People
• Technical terms

However, the index should suit the reading age.

A young children’s reference book may use:

• Short entries
• Large type
• Simple language
• Visual symbols
• Clearly grouped topics

Do not add a dense academic-style index to a book designed for early independent readers.

Large-Print Editions Need a Separate Index

Professional large print book publishing UK creates different pagination from the standard edition.

The large-print version therefore needs its own index references.

Do not copy the standard-edition index unchanged.

The large-print index should also use:

• Readable font size
• Clear spacing
• Strong contrast
• Manageable line length
• Distinct subentry indentation

A large-print book with 18-point body text should not end with an index set in 8-point type.

The index is part of the reading experience and should follow the accessibility goals of the edition.

A separate large-print edition may also need:

• More index pages
• Revised cover spine
• New print-cost calculation
• Separate proofreading

Decide the Index Length

The available length may be influenced by:

• Book page count
• Subject
• Intended audience
• Publisher budget
• Printing cost
• Trim size
• Index complexity

A short practical book may need only a few pages.

A detailed history or biography may require a much longer index.

Do not impose an unrealistically short limit that forces the indexer to remove essential entries.

At the same time, an excessively detailed index may overwhelm general readers.

Discuss the expected length before work begins.

Use a Consistent Alphabetical System

Indexes are normally arranged alphabetically.

Decisions may be needed for:

• Numbers
• Acronyms
• Hyphenated words
• Prefixes
• Names beginning with Mc or Mac
• Accented letters
• Symbols
• Titles beginning with articles

Follow one recognised indexing style.

Check how the system treats:

• 5G
• eBook
• email
• KDP
• McDonald
• O’Connor
• self-publishing
• World War II

Indexing software can help sort entries, but the indexer should review the order manually.

Keep Entries Grammatically Parallel

Subentries should use a consistent form.

For example:

editing
before submission
cost of
developmental
for nonfiction

Avoid mixing incompatible constructions such as:

editing
developmental
how much does it cost?
authors should hire editors
before publication

Parallel entries are easier to scan.

Avoid Unhelpful Long Strings of Page Numbers

An entry followed by many unorganised references is sometimes called a locator string.

For example:

publishing, 3, 8, 11, 15, 22, 29, 31, 38, 42, 48, 55, 61, 67, 71, 79, 83, 90, 102, 119, 126

This is rarely useful.

Break the subject into subentries:

publishing
independent, 61–71
library distribution, 102–108
print-on-demand, 79–83
traditional, 29–38

The index should help readers choose the right page before turning to it.

Avoid Too Many One-Reference Entries

Some single-page entries are useful, especially for:

• Specific people
• Minor events
• Specialist terms
• Unique examples

However, hundreds of trivial one-reference entries may make the index feel mechanical.

Ask whether each entry represents something a reader might genuinely seek.

A proper noun does not need an entry merely because it appears once.

Avoid Circular Cross-References

Check that cross-references lead somewhere useful.

Bad example:

independent publishing. See self-publishing

self-publishing. See independent publishing

The reader is sent in a circle.

Choose one main form.

Better:

independent publishing. See self-publishing

self-publishing, 45–58
distribution, 52–55
editing, 47–49

Review the Index From a Reader’s Perspective

Ask:

• Can readers find the main topics?
• Are common alternative terms included?
• Are large topics divided logically?
• Are page references useful?
• Are names spelt correctly?
• Are cross-references accurate?
• Is the index too detailed?
• Is it too sparse?
• Does it reflect the book’s actual emphasis?
• Are sensitive terms handled appropriately?

Search for several likely reader questions.

For example:

• Where is legal deposit discussed?
• Where can I find the case study on burnout?
• Which pages discuss London?
• Where is the author’s main framework explained?
• Which sections cover disability access?

If the index cannot answer these questions efficiently, it may need revision.

Review the Index Against the Final Proof

After receiving the index:

• Check every major entry.
• Test a sample of page references.
• Confirm cross-references.
• Review spelling and capitalisation.
• Check names and titles.
• Confirm that late corrections did not move pages.
• Check the final index layout.
• Proofread alphabetical order.
• Confirm indentation.
• Check page ranges.

The author does not necessarily need to verify every locator manually when a professional indexer has completed the work, but important topics should be tested carefully.

The publisher or production editor may also perform a quality check.

Proofread the Index as Its Own Document

Indexes contain concentrated detail and are vulnerable to small errors.

Check:

• Missing commas
• Incorrect dashes
• Duplicate entries
• Misspelt names
• Repeated page numbers
• Reversed page ranges
• Broken cross-references
• Incorrect indentation
• Alphabetisation
• Inconsistent capitalisation
• Orphaned headings

A single typo can place an entry in the wrong alphabetical location.

Proofreading software may not understand whether the index structure is correct, so manual review is essential.

Indexing Software Can Help but Not Replace Judgement

Specialist indexing tools can support:

• Entry management
• Alphabetical sorting
• Cross-references
• Locator formatting
• Duplicate detection
• Subentry organisation
• Export formatting

Word-processing programmes may also create basic indexes through marked entries.

Automated tools cannot reliably decide:

• Which concepts matter
• Which mention is substantial
• How readers will search
• Whether two terms should be combined
• Which subentries are helpful
• Whether a historical label needs explanation
• Whether a page range represents one discussion

An automatically generated index often lists words instead of subjects.

Human editorial judgement remains central.

Indexing an eBook

Reflowable eBooks do not use stable page numbers in the same way as print books.

Possible approaches include:

• Linked index entries
• Searchable text
• Hyperlinked contents
• Location references
• Removing the print index where platform search is sufficient
• Creating a linked subject index

The best choice depends on:

• eBook format
• Publisher
• Retail platform
• Reader expectations
• Accessibility
• Complexity of the book

Do not copy print page numbers into a reflowable eBook when they do not correspond to the digital reading experience.

A linked index may still add value because it groups concepts more intelligently than a basic keyword search.

Indexing an Audiobook Companion File

An audiobook cannot use printed page references directly.

A companion PDF may include:

• Index
• Tables
• Illustrations
• Notes
• References
• Worksheets

The audiobook itself may use:

• Chapter navigation
• Section titles
• Spoken signposting
• Companion-resource references

When adapting an indexed print book to audio, explain clearly how listeners can locate related material.

Do not read a complete page-number index aloud.

Indexing and the Author Website

Professional author website SEO can support the book by creating pages around major themes.

The index may help identify:

• Frequently discussed subjects
• Core frameworks
• Important people
• Common reader questions
• Useful article topics

However, do not publish the complete index online merely to create keyword density.

A website should present useful original content, such as:

• Topic guides
• Resource pages
• Reading notes
• Sample chapters
• Research updates
• FAQs

The index can inform website planning, but its purpose remains navigation within the book.

Indexing and the Book Trailer Script

A book trailer script does not need to explain the index, but an index may support the positioning of a practical or reference title.

For example, the trailer may state:

“Explore practical guidance on leadership, conflict, communication and team trust.”

These themes may correspond with major index entries.

Do not list dozens of topics in the trailer.

The trailer should create curiosity, while the index helps readers navigate after purchase.

For an academic, historical or professional book, the existence of a detailed index may be mentioned in:

• Retail description
• Sell sheet
• Library outreach
• Media kit

It signals that the book has been prepared for reference use.

Common Book Indexing Mistakes

Frequent problems include:

• Creating the index before pagination is final
• Using an automated word list
• Indexing every mention
• Omitting important concepts
• Listing only names
• Using vague main entries
• Creating long unstructured page-number strings
• Using too many trivial entries
• Forgetting alternative terminology
• Creating circular cross-references
• Copying the standard index into a large-print edition
• Failing to update after layout changes
• Using inconsistent names
• Ignoring illustrations and tables
• Setting the index in unreadably small type
• Failing to proofread alphabetical order
• Treating website keywords as index entries
• Leaving insufficient time before publication

A weak index can make a strong book frustrating to use.

A Practical Book Indexing Process

A reliable workflow may include:

• Decide whether the book needs an index.
• Include indexing in the production budget.
• Complete manuscript assessment and structural revision.
• Complete sensitivity review and fact-checking.
• Finish line editing and copyediting.
• Finalise illustrations, tables and captions.
• Typeset the book.
• Stabilise pagination.
• Provide final proofs to the indexer.
• Define the audience and style requirements.
• Identify major concepts and alternative terms.
• Create main entries and subentries.
• Add useful cross-references.
• Select only substantial page references.
• Include important tables and figures.
• Alphabetise and format consistently.
• Review the index from the reader’s perspective.
• Test major page references.
• Update the index after any pagination changes.
• Proofread the final index layout.
• Prepare a separate index for the large-print edition.
• Adapt navigation for the eBook and audiobook where needed.
• Approve the final print files.

A well-made index increases the practical value of a nonfiction book.

It helps readers return to ideas, compare discussions and use the book as a lasting reference rather than a publication they read once and place aside.

Frequently Asked Questions

When should a nonfiction book index be created?

The final index should usually be created after typesetting, when pagination is stable. Planning can begin earlier, but page references cannot be finalised until the interior layout is complete.

Can authors create their own book index?

Yes, particularly when they understand the subject and indexing principles. A professional indexer may provide stronger reader perspective, organisation and consistency for complex books.

Can software automatically create a professional index?

Software can sort entries and manage page references, but it cannot reliably judge which concepts matter, how readers will search or which mentions are substantial.

Does every nonfiction book need an index?

No. An index is most useful for books readers are likely to consult repeatedly, including history, biography, business, science, professional guides and detailed practical nonfiction.

Does a large-print edition need a separate index?

Yes. Large-print formatting changes pagination, so it needs new page references. The index typography should also follow the readable design of the large-print edition.

What is the difference between an index and a contents page?

A contents page lists the book’s main structural sections. An index provides detailed alphabetical access to people, places, concepts and subjects discussed throughout the book.