I know I’ve mentioned in the past that I subscribe to an e-book library that often gets pretty big dumps of books for borrowing. It’s not quite like going to the bookstore — you can’t just walk through the aisles until you find something that looks good. It comes down to title, author, and a thumbnail of the cover. If I’m interested, I’ll click in and read the synopsis, and if it catches my interest, I’ll borrow it.

Sometimes I stumble upon crap. But other times there are hidden gems. Here are six of the best books I discovered by accident.