Users sometimes need a little help, even with the best-designed applications. GNOME provides a built-in topic-oriented help system that uses the Mallard markup language. Pioneered by GNOME developers, Mallard is an agile and dynamic language that helps you write and revise quickly. Its topic-oriented design means your users can find the answers they need without sifting through a manual. With its unique linking and organization system, Mallard is the only language designed to handle plugin and vendor help in one coherent document.

Cando precisa manuais lineais, GNOME tamén é compatíbel co formato estándar da industria DocBook.