The Notebook: Nicholas Sparks
I'm not going to lie, when I was about 17 a girl came into the bookstore I worked at and told me this was her favorite book. To impress her, i went home and read the entire thing that night. I'm not going to lies, at that point, I likes the story. Then, I watched the movie and it was hardly bearable.
While we all know this movie is amazing, the book is also really good and worth reading even if you already know the end.