A Clockwork Orange by Anthony Burgess

I read this book the summer before my freshman year of high school (it was on the summer reading list). I had to read the first few pages several times but after awhile I began to understand the crazy futuristic slang and after that I couldn't put the book down--I more or less shut myself inside my room for 2 days so I could finish it. I even made a glossary translating Nadsat to English so my mother could read it (she never did).