LyX is a wordprocessor frontend to LaTeX, which gives both the ease-of-use of a wordprocessor, and the flexibility and power of LaTeX. LyX produces high quality, professional output -- using LaTeX, an industrial strength typesetting engine, in the background; LyX is far more than a front-end to LaTeX, however. No knowledge of LaTeX is necessary to use LyX, although it will give a user more power. LyX is stable and fully featured. It has been used for documents as large as a thesis, or as small as a business letter. Despite its simple GUI interface (available in many languages), it supports tables, figures, and hyperlinked cross-references, and best-of-breed math editor. Flavors: qt - build with a Qt GUI (open-source GPL library) xforms - build with an XForms GUI (closed-source library)