ANSI Common Lisp

Paul Graham, author of On Lisp and later co-founder of Y Combinator, offers an introduction to programming in ANSI Common Lisp. The book teaches Lisp from the basics through advanced topics such as closures, macros and object-oriented programming with CLOS. It includes worked examples, among them an inference program, a ray tracer and an object system. A full reference to the ANSI standard is included. It is aimed at both students and working programmers.