&TCD; provides support for different documentation formats, including Texinfo, LaTeX, DocBook and LinuxDoc. These formats have their own specifications and requirements to create and maintain documentation manuals written through them. Inside &TCAR;, the functionality provides the interface you use to create and maintain documentation manuals without needing to take care the underlaying structuring tasks. This chapter describes how the functionality implements the different documentation source formats available inside &TCD;, and the internationalization issues related to documentation manuals produced through them.