The easiest way to learn how to use latex is to look at how other people use it. Here is a list of real world latex sources that are freely available on the internet. The information here is sorted by application area, so that it is grouped by the scientific communities that use similar notation and LaTeX constructs.
General examples
Tutorial examples, books, and real world uses of LaTeX.
- caption.tex, simple.tex, wrapped.tex
- small2e.tex and sample2e.tex. The "official" sample documents...
- A short example of how to use LaTeX for scientific reports by Stephen J. Eglen.
- The not so Short Introduction to LaTeX by Tobias Oetiker is distributed with full latex sources.
Semantics of Programming Languages
Articles on programming language research, from syntax to semantics, including source code listings, type rules, proof trees, and even some category theory. A good place to start is Mitchell Wand's Latex Resources, including a sample file that also demonstrates Didier Remy's mathpartir package. The following are latex sources of some articles, books, or presentations from this field:
- Pugs: Bootstrapping Perl 6 with Haskell. This paper by Audrey Tang contains nice examples on configuring the listings package to format source code.