There is a fairly simple program in
that solves word problems using the methods of the old AI. The point is that is is efficient and effective to use real math operators and not expect to fit numbers through the mysterious bottleneck of neural encoding.
3. PAIP (https://www.amazon.com/Paradigms-Artificial-Intelligence-Pro...)
4. Lisp In Small Pieces (https://www.amazon.com/Lisp-Small-Pieces-Christian-Queinnec/...)
5. The C Programming Language (https://www.amazon.com/Programming-Language-Dennis-M-Ritchie...)
In my opinion, Common Lisp: A Gentle Introduction to Symbolic Computation is the best introductory Lisp book available. It has a good pace for (even absolute) beginners, and there are nice little exercises with solutions. If I interpret your self-description correctly, this would be a good read for you.
When I recommended it to some of my fellow students, all agreed that this was a very solid introduction to Lisp, and everybody passed the exam without problems. Some (those already quite good at programming) found it too slow paced, however.
Then, good second reads (or first, if you feel bored by Touretzky) would be Practical Common Lisp and Successful Lisp.
Finally, one of my favorite books not only about Lisp, but programming in general is PAIP. I prefer its style to SICP, which is also great and recommended by many.