TeX is a typesetting system, developed by Donald E. Knuth,
intended for the creation of beautiful books
- cited from the primary TeX-reference

The TeXbook, Donald E. Knuth, Reading, MA, etc., 1986.
But it's well suited for simpler tasks too.

Software to use TeX is part of Linux.

There is a lot of TeX information in the net.
Some basic links:

last change: 20. Sep. 2002