Still, it can sometimes be a bit tricky to find the right words to clearly and concisely describe your book’s promise. The best way I’ve found to get there is to try it out in conversation. When someone asks what you’re working on, attempt to describe the book in just one or two sentences. And then you need to do the hardest thing of all: to shut up and listen to them completely misinterpret and misunderstand what you’re trying to do.