This book is developed by the Ubuntu Documentation Team .The source code for this book is written using Docbook XML and is kept in a Subversion code revision control repository. Everyone is able to checkout a copy of the source code and provide updates in the form of patches. Another way of contributing is by sending ideas or comments to the Ubuntu Documentation Team mailing list. Information about the team, its mailing lists, projects, etc. can be found on the Ubuntu Documentation Team Website .