How many times have you closed a book and opened Google instead?
Maybe you bought a book on leadership or strategy, and six months later, you need to locate the section on delegation. You turn to the index, find eight page numbers, and, with no context to go on, pick one at random. The word appears once, in a sentence about quarterly reviews, and you’re already turning to the next page number, wondering if Google might be faster.
The index was available. It just wasn’t built with the reader in mind.
Make every page number count
Most indexes fail the same way: the author treated every mention of a term as a locator worth including. If “feedback” appears on forty pages, all forty pages go in. A reader follows one, opens to a sentence where the word appears in passing, learns nothing, and stops trusting the index after the third time.
Every locator should point to a page where the text does real work on that term — explains it, examines it, applies it, argues with it. If “feedback” gets substantive treatment on four of those forty pages, those four pages belong in the index. The rest isn’t helpful and trains your reader to stop checking.
The judgment call is harder than it sounds, because authors are the worst possible judges of their own material. You’re too close to see which discussions are substantive and which are incidental — every page felt worth writing when you wrote it. For each potential locator, ask one question: Does this page teach the reader something about this term, or does the text use it?
Write entries in your reader’s vocabulary
Cutting incidental mentions gets the reader to the right pages. Getting the reader to the right entry is a different problem — one that authors are equally poorly positioned to solve on their own.
You named the concepts in your book and used those names consistently, because consistency is part of good writing. Readers arrive with their own names for your ideas. A reader looking for “mindset shift” who finds nothing in the index won’t think to try “cognitive reframing.” The reader will assume the book doesn’t cover it, close the book, and search Google again.
Cross-references close that gap. An entry reading mindset shift — see cognitive reframing routes the reader correctly without duplicating locators under two headings. “See also” references go further — they tell a reader who found what they came for that related material exists nearby. An entry for “negotiation” that includes “see also: conflict resolution, stakeholder alignment, contracts” is the index thinking ahead on the reader’s behalf, anticipating the next question before the reader knows to ask it. That foresight is what separates a navigable index from a keyword list.
Two Kinds of Cross-References
The term “cross-reference” does double duty in publishing. In the body of a book, a cross-reference sends readers to another part of the text, such as “see figure 3.2” or “as discussed in Chapter 4.” Those belong to the author and are written during drafting.
Index cross-references are different. “See” and “see also” appear inside the index itself, pointing from one entry to another. They have nothing to do with the body text. They’re navigational tools for a reader who skipped straight to the back of the book, looking for something specific.
Same term, different job. If you’re building an index, you’re working with the second kind.
Break crowded entries into subentries
Cross-references solve the vocabulary problem of getting the reader to the right entry. Subentries solve the navigation problem that appears once they’ve arrived.
An entry with ten locators and no subentries gives the reader ten page numbers and no basis for choosing between them. Subentries convert that list into a structure the reader can use:
leadership
— feedback and, 44–47
— in remote teams, 112
— self-assessment, 203–206
— under uncertainty, 88, 91
A reader with a specific question goes directly to the right page rather than auditing the full list. Five or more locators under a single heading is a reasonable indicator that subentries are warranted. When breaking an entry into subentries produces entries with only one locator each, the original term was probably too narrow to need subdivision.
The same principle governs how entries are phrased. Names go in inverted form — “Smith, John” rather than “John Smith” — because readers scanning names do it alphabetically by surname. Concepts go under the noun: “management, crisis” rather than “crisis management,” unless the compound is so established that no reader would search for the noun first. An index earns its quality through these judgment calls, made consistently across hundreds of entries.
Think like a professional indexer
The three problems above — incidental mentions, author vocabulary, flat lists — share a single root. Authors read their own work as the person who wrote it. A professional indexer reads it as someone who will later need to find something in it.
That distinction drives everything. A professional indexer maps concepts: identifying relationships between ideas, anticipating what a reader under pressure will search for, and building entry structures that hold up after ten, fifty, or a hundred consultations. The American Society for Indexing trains practitioners in that kind of reading, because it’s a discipline, not just a task.
Dense reference works, academic texts, and books that readers will consult repeatedly benefit most from a professional indexer. For lighter nonfiction, careful self-indexing can do the job — if you can read your own book as a stranger would.
Tag terms while you still know why they matter
Reading your own book as a stranger is hardest when the manuscript has just gone final. The material feels simultaneously too familiar and too distant — you’ve stopped seeing the structure of individual arguments, but you haven’t yet forgotten that every page felt important when you wrote it. Judgment calls that were obvious during drafting become guesswork six months later.
The more workable method is tagging terms during writing and revision, while you still know which discussions are substantive and why. Tools like Microsoft Word and Adobe InDesign support embedded index tagging, but neither is designed specifically for nonfiction authors. Most self-published authors reach for one of those tools after the manuscript is done, which puts them back at the same problem: cold material, difficult judgment calls, and a tedious page-by-page pass with a deadline in sight.
Mockingbird Press is built around a different approach. You tag terms inline as you write — marking a discussion of “delegation” as index-worthy in the same moment you know it’s substantive — and Press assembles the full index at build time, including subentry structure and cross-references. The mechanical work disappears. The editorial judgment stays with you, where it belongs, captured at the moment when your own understanding of the material is sharpest.
Give the index the same attention as the rest
Most authors treat the index as the last task, the least interesting one, the one to get through. Readers don’t experience it that way. They experience it every time they come back.
Build it like it matters. Because to the reader with a question and thirty seconds, it does.