Most documentation for TeXmacs is directly available from its Help menu. Moreover, the Help→Search menu provides a Google-like way to search for keywords in this documentation. In particular, the basic TeXmacs documentation includes:

• Answers to some frequently asked questions.
• A user manual (mostly translated into French, Italian, Portuguese and Spanish).
• Documentation for developers.

More extended documentation, including a tutorial, is available from the web. A tarball with the extended documentation is available here. TeXmacs also integrates a Wiki, which is available from Help→Online help→Wiki. The following are some introductions to TeXmacs:

• TeXmacs quick start guide, an introduction by Nicolas Ratier, which fits on one A4.
• TeXmacs in 60 minutes, a hands on tutorial by Andreas Seidl.
• GNU TeXmacs: a scientific editing platform, an introduction to TeXmacs for scientists.

Notice that we also provide several mailing lists for further questions. Of course, you may also directly contact us.