If you're completely new to programming (or rusty), I'd recommend "A Gentle Introduction to Symbolic Computation" before PCL or ACL. http://www.cs.cmu.edu/~dst

If you're completely new to programming (or rusty), I'd recommend "A Gentle Introduction to Symbolic Computation" before PCL or ACL. http://www.cs.cmu.edu/~dst/LispBook/ http://www.cs.cmu.edu/~dst/LispBook/ It's a really great, free resource for beginners that will help you get ready for the other books.