Gentle Introduction to Symbolic Computation is a great book, I learned a lot. The 1990 version available for free below has aged well but you need to look else

Gentle Introduction to Symbolic Computation is a great book, I learned a lot. The 1990 version available for free below has aged well but you need to look elsewhere for getting setup with emacs and slime or whatever environment you want. https://www.cs.cmu.edu/~dst/LispBook/ https://www.cs.cmu.edu/~dst/LispBook/