Not so much a book as an entire genre, my choice for today are all those tragic survivor biographies - my mummy/daddy/uncle/etc. abused me and my life was horrible but I survived and here's a book about it. They always have black and white covers and titles like "Tell no one" and "Mummy, don't!"
I accept that this may be controversial, and it's not that I don't feel for the pain and suffering such people have gone through, I absolutely do, I just don't want to read about it. It makes me sick that there are publishers growing rich on the back of these tragedies, feeding into the voyeuristic tendencies of the general public.
I do know people who really enjoy reading these books and I just don't understand it. If you're one of them, please leave a comment and let me know why :)