This package provides documentation for SBCL -- a development environment for the ANSI Common Lisp language. . The documents in this package cover SBCL-specific extensions to the language, explain how to use this Common Lisp implementation and how it differs from the ANSI standard. . The manual about SBCL's internals is also included in this package and may be of interest for people who intent to work with SBCL's source code. .