I've been recommending this text to people who want to start learning Common Lisp since it was first available in draft form on the author's web site. Now that it's out in print I can enthusiastically recommend that anybody who is interested in learning Common Lisp - or even curious about how the language can improve your productivity - purchase it.

Peter has a very enjoyable and easy-to-understand writing style, and he starts early with practical examples that show how Common Lisp can be used to solved problems. Chapter 3, "A Simple Database", is a great explanation of how programs are grown from pieces in Common Lisp to solve large problems. It's presented early and draws people in to the problem solving techniques used when programming in Lisp.

Peter doesn't skimp on details, though: detailed chapters on FORMAT (for formatted output), LOOP (for general iteration / value collection), and CLOS (the Common Lisp Object System) provide a wonderful tutorial to these... Read more

Practical Common Lisp is a solid introductory text to Common Lisp for people with previous programming experience, and is sufficiently no-nonsense that even relatively experienced lisp programmers will benefit from it.

Having been exposed to people with no lisp experience who have started learning it from this book, most seem to manage well. Common problems stem from jumping too far ahead: unlike many books who claim to do so, PCL actually has a very nice didactic approach to most things, and benefits from being read in order.

I have very few grivances with the book:

1. I believe that package and symbol semantics could benefit from a thorough treatment earlier in the book -- say around chapter 6, as opposed to being left for chapter 22.

2. While Seibel's style is refreshingly idiomatic[1], he consistently uses Javaesque dotted.package.names, which while not by any means unique to him I still find irritating. Most of the package names in the... Read more

Peter Seibel's writing style is a joy to read, and (unlike other commenters) I find his footnotes quite useful. Concepts are introduced in a natural and general intuitive ordering, and in general this is a great book for the first-time learner of Lisp.

Now -- WATCH OUT FOR THE INDEX! My first indication that the index of this book was not up to par was an especially useful footnote on page 58 mentioning READ-FROM-STRING, which I couldn't find later when I needed to use READ-FROM-STRING in the small Lisp program I'm writing. A little experimentation convinced me that nothing in the footnotes is listed in the index, and I started reading with a pencil in my hand.

Unfortunately, the index fails in more fundamental ways as well. It would have you believe that the "do" keyword is introduced on page 278, when in fact an entire subsection is devoted to "do" in pages 85-87. If you look up "comment" you'll find no mention of page 49, where comment conventions for block... Read more