Most of the LaTeX pages were created during a lecture on LaTeX that I gave in the winter term 2006/2007 at the Faculty of Mathematics at the University of Siegen. They consist of:
What is LaTeX?
LaTeX is a free typesetting system that is well suited to typeset scientific articles. It is a macro package based on TeX being approximately 30 years old. LaTeX established to the quasi-standard typesetting system in mathematics, physics and many other scientific disciplines.