How To Write A True-Crime Book Proposal . Hook the publisher in with an overview. Publishers want to know why you are the right person to write this book. The 15 Best TrueCrime Audiobooks Are Guaranteed to Give You Chills from www.pinterest.com Scroll below to learn how to write a book proposal for any genre or category. Who are you friends with, how have they committed to help you, what organizations are backing you, what will they do with the book, etc. They also want to know what platform or connections you have or can create to help promote your book.