Richard Stallman needs no introduction... but here is one anyway! Richard Stallman is the author of the GNU GPL, founded the Free Software Foundation, and started the development of the GNU operating system (including GNU Emacs, GCC, the coreutils, etc.), which we and tens of millions of GNU/Linux users love. However, his main contribution is philosophical. He is the father of the Free Software Movement. He identified four freedoms that each one of us deserves to be in control of her computing. Stallman now dedicates most of his life to advocacy. In particular, he travels the whole world to eloquently spread awareness about the Free Software Movement, its ethical foundations and its social and political necessity.

Richard Stallman will deliver ten talks in Brazil and Argentina, starting with "A Free Digital Society" in Belo Horizonte on May 29th. Here is the whole list:

Stallman will be selling items to the benefit of the Free Software Foundation: please bring cash.

-- Loïc Cerf