Ask yourself: How much is the book index worth to you in terms of book sales, royalties,
reviews, text adoptions, peer approval, personal satisfaction? The index is the road map to every pertinent sentence you have written!
The professional book indexer also adds value during book production. The book
indexer is the "last set of eyes" to read the book thoroughly and carefully just prior
to sending the book to print. Frequently the indexer catches last-minute typographical
errors and typos that would otherwise be missed.