Lisp has such an amazing literature. Aside from those 2, which are truly nice, there's The Little Schemer, SICP, On Lisp, Lisp in Small Pieces, PAIP and many ot

Lisp has such an amazing literature. Aside from those 2, which are truly nice, there's The Little Schemer, SICP, On Lisp, Lisp in Small Pieces, PAIP and many others (like CLtL, The Art of the MOP, etc). I personally think Lisp in Small Pieces is really underappreciated.