He's really only got three other books, and only one of them's a novel, the others being a short story collection and a pair of novellas/novellettes.

I read Catcher first and found it just OK. Franny and Zooey was my gateway deeper into Salinger (and Stoicism) back in high school. Liked Nine stories quite a bit on my first visit, but didn't care for Raise High & Seymour at all until a re-read over a decade later, and now that might be my favorite of his books.