I picked it up in a bookstore when I had some time to kill when I was like 18 or 19, and read the whole thing in one sitting. It was weird though, because while I found Holden vaguely annoying, I really related to what he was feeling. I read it again in my mid-twenties and had a different appreciation for it. There were also a lot more moments of "holy shit kid, that's fucked up. I'd be angry, and struggling too."