lisp-lang.org's style guide

Paradigms of Artificial Intelligence Programming by Peter Norvig

Lisp code for the textbook "Paradigms of Artificial Intelligence Programming"

sbcl-wiki

maybe-wrong sbcl internals

On Lisp by Paul Graham

A great book for intermediately experienced Lispers

Programming Algorithms in Lisp

Updated version of "Programming Algorithms"; A comprehensive guide to writing efficient programs with data structures and algorithms in Lisp