This book is intended for anyone who wants to become a better Lisp programmer. It assumes some familiarity with Lisp, but not necessarily extensive programming experience. The first few chapters contain a fair amount of review. I hope that these sections will be interesting to more experienced Lisp programmers as well, because they present familiar subjects in a new light. It’s difficult to convey the essence of a programming language in one sentence, but John Foderaro has come Lisp is a programmable programming language. There is more to Lisp than this, but the ability to bend Lisp to one’s will is a large part of what distinguishes a Lisp expert from a novice. As well as writing their programs down toward the language, experienced Lisp programmers build the language up toward their programs. This book teaches how to program in the bottom-up style for which Lisp is inherently well-suited.
Paul Graham is an essayist, programmer, and programming language designer. In 1995 he developed with Robert Morris the first web-based application, Viaweb, which was acquired by Yahoo in 1998. In 2002 he described a simple statistical spam filter that inspired a new generation of filters. He's currently working on a new programming language called Arc, a new book on startups, and is one of the partners in Y Combinator.
Paul is the author of On Lisp (Prentice Hall, 1993), ANSI Common Lisp (Prentice Hall, 1995), and Hackers & Painters (O'Reilly, 2004). He has an AB from Cornell and a PhD in Computer Science from Harvard, and studied painting at RISD and the Accademia di Belle Arti in Florence.
Paulgraham.com got 10.6 million page views in 2008.
A fantastic look in-depth at LISP that follows on from his intro book ANSI Common LISP. Read that intro book first - it's a great tutorial that also contains a reference section. This book really got me going in LISP several years ago. At times it's a slog but if you have your LISP REPL running and key in ALL the examples as you read you'll find you get to grips with LISP with just this book. Don't give up. I found that when I got stuck I could just put the book down for a while and come back to it after my brain had a chance to rewire itself. I first read this book when it came out in 1996 and then several times after that and yet after another reading in 2014 I still find I'm getting new insights.
Not only a great source of LISP wisdom, but also pleasant to read. The style is engaging, it never feels boring or dry. PG uses analogies from all kinds of unrelated areas (architecture, psychology) to draw parallels with pieces of good LISP code.
"It used to be thought that you could judge someone’s character by looking at the shape of his head. Whether or not this is true of people, it is generally true of Lisp programs."
Becomes progressively brain-twisting, but worth sticking with for the principles even if they're not immediately and instantly usable in your next program.