I recently received the longest list of terms from an author that I have ever received. The list was so long that I immediately contacted the publisher and explained that even with the extra space I had already asked for and received for the index, there was no way that I could include everything that the author suggested. Thankfully the publisher agreed with me and the author later accepted my index, but the list that I was presented with still required a response.
Setting Expectations
The first step, for me, after thanking the author for the list, is to set the expectation upfront that my work will not be bound by that list. I will read the list and use it for reference, but I will not duplicate the list and I will use, or not use, the suggested terms at my discretion. While I welcome the author as the subject expert, I want to emphasize that I am the index expert.
Finding Value in the Lists
The amount of value depends from list to list. I sometimes get the sense that the author believes that I will simply fill in the page numbers for them, using keyword search, which is a common misconception of how indexes are written. That said, I find that these lists can often tell me what the author thinks is important, which I will try to fit into the index. These lists can also highlight aspects of the book that I might not recognize as important—since I am not always the subject expert. So while I rarely follow the lists term by term, they can influence how I work.
Responding to the Author
If the author has taken the time to put together a list, I assume they have expectations for how the index will look. Since I do not promise to faithfully follow their list, I will often submit a note with the index explaining how I used their list and how I wrote the index, with the goal of forestalling objections. This could include explaining why some terms were perhaps unsuitable or how I used some terms as subheadings instead of main headings, for example. For the index I mention above, I explained that the list was too long and detailed for the space available, and then explained what I did do instead to make the book’s content searchable. Since the author did not request any changes, I assume my explanation was accepted.
What is Actually Helpful
If I am being honest, I don’t really want these lists from authors. It does take time to respond to, and I assume that it also takes up the author’s time, especially for the lists that are long and detailed. It seems like a lot of work for something of limited value. But what can be actually helpful is a short list focused on the top ten or twenty terms that the author thinks is important. The author could even write a short paragraph, in a couple of sentences, explaining what the book is about. Help me see the book from the author’s perspective. That will help me understand the core focus of the index, and then I can figure out the rest.