Practical Common Lisp - https://gigamonkeys.com/book/
Casting SPELs in Lisp - http://www.lisperati.com/casting.html
Structure and Interpretation of Computer Programs - https://mitp-content-server.mit.edu/books/content/sectbyfn/b...
One of many prior discussions here on HN: https://news.ycombinator.com/item?id=22913750
... amongst many resources for learning LISP.