When I was a beginner, A Gentle Introduction to Symbolic Computation worked for me. As the title suggests, it gently introduces concepts in a very beginner friendly manner, so even macros are easy enough to grasp by the time you get there. The diagrams and examples are great.

https://www.cs.cmu.edu/~dst/LispBook/book.pdf

Thanks for the recommendation. I appreciate it. I’ll definitely check this out.