Written by a Lisp expert, this is the most comprehensive tutorial on the advanced features of Lisp for experienced programmers. It shows how to program in the bottom-up style that is ideal for Lisp programming, and includes a unique, practical collection of Lisp programming techniques that shows how to take advantage of the language's design for efficient programming in a wide variety of applications.
Perhaps the author gives the best description of this book: "On Lisp deals mostly with the kinds of programs you could only write in Lisp." The book provides extensive information on the advanced features of Lisp, which are not found in other popular programming languages. After showing how flexibly functions can be manipulated, On Lisp moves on to the best discussion of macros available, which includes details of the possible pitfalls (various referential bugs, for example). The book concludes with a demonstration of various advanced constructs that can be implemented in Lisp using the tools developed in the earlier part of the book. As with his other book, ANSI Common Lisp, Graham writes in a fluid style that is a pleasure to read.