Touring Symbolic AI

I've been incrementally studying Lisp programming using "Common LISP: A Gentle Introduction to Symbolic Computation" by David Touretzky (the 2013 edition). After working through the first six chapters, I feel ready to take a steeper road to Lisp and Symbolic AI. I had originally planned to use "Paradigms of Artificial Intelligence Programming" by Peter Norvig to start. After taking a look at "Lisp 3rd Edition" by Patrick Winston, I'm kind of conflicted on which which book to use as the initial primary text. Both seem to start with Lisp, followed with implementations of classic AI applications. Cost isn't really a factor, because I already own both books. Any suggestions?