The ANSI Common Lisp Reference Book is the updated edition of the classic reference to the Common Lisp Language. It contains descriptions of every ANSI Common Lisp operator, constant, variable, and class. In addition, it covers other specialized topics, such as arguments common to many operators, format directives, and reader macros. Rounding out the book are a number of essays on specific topics in Common Lisp, such as declarations, forms, keywords, lambda expressions, pathnames, and streams, as well as descriptions of standard extensions to Common Lisp (with examples provided by Allegro CL). Each page has a standard format, examples, and extensive cross-references to related pages.