Oh, and I second the recommendation for Peter Norvig's Lispy. https://norvig.com/lispy.html https://norvig.com/lispy.html Or, if you want to do a low-level im

Oh, and I second the recommendation for Peter Norvig's Lispy. https://norvig.com/lispy.html https://norvig.com/lispy.html Or, if you want to do a low-level implementation, Quiennec's Lisp in Small Pieces.