That's a good question. It depends on a number of factors. Ideally, we like to release a book trailer months before a book comes out. This way it will help our readers get a sense of what the book is about, what it covers, and furthermore, get some great visuals. We collect a lot of advanced orders for signed, personalized copies after a book trailer is released!
We create a book trailer depending on the type of book, when it is released, and the other types of advanced marketing and publicity we are doing for the book.
We put a lot of time into our trailers and our graphic designer David Van Dusen does some great work. Our trailers have come a long way since we started making them, and we are incorporating unique and exciting elements with each new one! You can view all of our book trailers on the Savas Beatie YouTube channel here http://www.youtube.com/user/militarybooks