Here is an introduction by Peter Seibel: http://www.gigamonkeys.com/book/beyond-exception-handling-conditions-and-restarts.html http://www.gigamonkeys.com/book

Here is an introduction by Peter Seibel: http://www.gigamonkeys.com/book/beyond-exception-handling-conditions-and-restarts.html http://www.gigamonkeys.com/book/beyond-exception-handling-co... (it is a chapter from "Practical Common Lisp", an really excellent book!)