This is sort of a "no-duh" statement, but I do think it is important to keep this in mind, especially if you are a new author. Readers buy books because they know who you are. They remember a name.
I was talking with a writer this last week about just this topic. She was frustrated with a couple of books she had just finished reading from an author who is "supposed to be amazing." The author in question has been around for a while and is one of those "Best Selling" authors. And yet, the last couple of books, were far from amazing. So, why is it that this person keep selling?
The answer is simple. Readers see a new release from their favorite author and they immediately rush out to get the book. That single sale just moved that author closer to that "Best Seller" list. Readers assume that this new book will be equally as amazing.
Publishers also recognize this when they consider release dates for books. They know readers recognize those authors names and will keep the author in mind each month just because they read that prior month's book. They also know the struggles they can have with sales if the author only releases a book 1 time a year, or even longer. It is all an issue of "out of sight, out of mind."
Consider this as well. Why is it that celebrities sell their books so well. They can pretty much sell a book on anything and people will buy it. Again, you as a reader know who that person is.
Just something to think about on a Tuesday.