This is how the industry works. People make bets based on their estimation of how a book is going to fly...and nobody really knows for sure. Andew Wiley (a wel

This is how the industry works. People make bets based on their estimation of how a book is going to fly...and nobody really knows for sure. Andew Wiley (a well known literary agent) also makes the observation that the bigger the advance the more assiduously the publisher will work to justify it.