Some time ago, I was playing with POV-Ray and noticed there was no portuguese reference to this powerfull tool. This lead me to write a simple tutorial to whom want's to learn how to program 3D objects.

The Not So Short Introduction to LaTeX2e

There is a splendid open-source introduction to LaTeX2e written by Tobias Oetiker et al. This is a portuguese translation with some notes for portuguese users. You can download them here.

Typesetting music with ABC

This is a portuguese translation of Guido Gonzato brilliant ABC manual, regarding not only the basics but also advanced music typesetting. Download it here.