Gentoo Handbook

[...] The goal of the Gentoo Handbook is to create a coherent document that describes every possible aspect of Gentoo Linux. It combines already existing guides in one consistent book so that the same document is used for every possible architecture, every install, every user. This not only makes it easier for us to maintain, but also for the user to see that the differences are slim, and that other architectures are not seen as a separate entities. [...]