My example is Hermann Hesse. Well, it's an author you have to read going to school in Germany.
The first one I had to read was Siddhartha and I really loved this book! So I thought I try some other books. But I soon gave up, I found them really boring.
2 years later I had to read another book from him in school, Steppenwolf. And Steppenwolf is a book I really hate. Most of my class mates found it interesting, they loved it, it was the first book read in school they really liked. But I find it really terrible. It is strange, there is this idiot taking drugs, thinking nonsense and wanting to commit suicide.
So, I really love Siddharta, wonderful book, I can read it again and again. But I surely won't touch the Steppenwolf again.