Common lisp the language was written by
Guy L. Steele Jr. of
Thinking machines, Inc. as a textbook and reference on the
language John McCarthy had made,
Common Lisp. It is clear, concise, and excellent as a reference once you already know some
LISP.
It was not intended as an introduction to LISP, since it assumes some knowledge of the language, but it is an excellent reference, and for years was the de facto specification of Common Lisp.
A second edition has been published, and it can be found either online or purchased in fine bookstores.
Common Lisp the Language, 2nd edition
by Guy L. Steele, Thinking Machines, Inc.
Digital Press
1990 paperbound
1029 pages
ISBN 1-55558-041-6 $39.95