My Book Theory

I have a theory, about books. It goes something like: for every above-average, teeth-sinking-into-worthy book you read, you will find another seven far below-average books, at least three of which you will read because they are the kind of bad book you need to read so you know what happens, even though you know it's going to be bad.

I'm not sure how this theory applies to good, well-written, but sad books. Because they are sneaky and finagled their way into two categories in my book theory.

I need another book theory.

I also need some good books. Suggestions?