SICP isn't all of lisp. But it teaches you a lot about programming. Lisp or Scheme are good languages to learn, and I would reccomend them Smalltalk is perhap

SICP isn't all of lisp. But it teaches you a lot about programming. Lisp or Scheme are good languages to learn, and I would reccomend them Smalltalk is perhaps the only "real" object oriented language. It's a fantastic language to learn, and in some ways very similar to Lisp. While you're at it, learn CLOS or its cousins in Schemeland, which have some similarities. I've heard that some OO fans swear by them. Prolog is the furthest from conventional programming of the three, and I'm not very familiar with it. I'd definitely reccomend learning it, though.