How Do You Get a Free Boost When You Can't Promote a Book?

When it comes to the mid and late series books, you can't really push promotion on the book itself. People who are seeing that book as the first book they've seen are less likely to pick it up. We found that what ended o happening, at least what we think from what we saw, is that amazon kind of knows who's bought book three, twoand one. So when book four shows up that book, we believe, was actually showing up to that market more so than not.