I believe that you can tell a great deal about a book by reading its index. A good index should allow the reader to quickly find what they want to find in a book. To create such an index means understanding both the contents of the book, and also how readers will be using the book.
With the index to Composition & Photography we have tried to be genuinely useful to the reader. However, according to a professional indexer who is a character in Kurt Vonnegut’s novel Cat’s Cradle, one should never index one’s own book: “It’s a revealing thing, an author’s index of his own work…It’s a shameless exhibition—to the trained eye.”