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Scribus is an Open Source program that brings professional page layout to Linux/UNIX, Mac OS X, OS/2 Warp 4, eComStation, Haiku and Windows desktops with a combination of press-ready output and new approaches to page design.
These are links to several tutorials for Scribus. Skill Levels range from beginner to more advanced uses of Scribus. They are distributed in Theora format.
Scribus is an incredibly powerful Desktop Publishing program similar to Microsoft Publisher and Pagemaker.