I’ve discussed reading habits before and why you really want to read good books, but how, as a writer, you may have to read professionally some books you don’t enjoy. But today, I want to urge you to not forget the values of a bad book.

I’m not meaning a book that’s grammatically-cringe-worthy, that has typos and spelling errors and that sort of thing. No, I mean one where the characters are strong, but the plot goes off course. Or where the romance feels fake. Or the mystery’s resolution just doesn’t make sense. The illogical, the contrived, and the exasperating…

Source: Why a Bad Book can be a Good Read