Lessig

Lawrence Lessig could be called a cultural environmentalist. One of America’s most original and influential public intellectuals, his focus is the social dimension of creativity: how creative work builds on the past and how society encourages or inhibits that building with laws and technologies.

His last book is Free Culture and is available for free under a Creative Commons license:

English
French
Spanish

All electronic formats are free, and there is a paper version available at: Penguin