Debian is a distribution, it is made of many thousands of (free) software :

  1. Each software provides has its own documentation (more below).

  2. Debian has some own documentation too (more below).

  3. At the bottom of the page, there are some pointers if you want to contribute improvement to documentation (more below).

Programs documentations

Under Debian (Unix), a program's documentation typically consist of (one or more of):

Debian Documentation

The most famous for Debian users are :

Many other Debian Documentation are available at

At the moment, Debian don't have a System Administrtor manual. However, there are some books about Debian, see:

Most documentation for Debian-developer (and package maintainer) are available from

Contribute to documentation

Most of the Debian Documentation is available at