Wikipedia

"Wikipedia may be the biggest group writing project ever, but the one thing you won't find in this amazingly comprehensive encyclopedia is easy-to-follow guidance on how to contribute. This Missing Manual helps you avoid beginners' blunders and get you sounding like a pro from your first edit"--P. [4] of cover.

Provides information on editing, creating, and maintaining Wikipedia articles, collaborating with other editors, formatting and illustrating articles, and building a stronger encyclopedia.