Free as in freedom Richard Stallman's crusade for free software

Blurb

Free as in Freedom: Richard Stallman's Crusade for Free Software is a free book licensed under the GNU Free Documentation License about the life of Richard Stallman, written by Sam Williams and published by O'Reilly Media on March 1, 2002.
Williams conducted several interviews with Stallman during the writing of the book, as well as with classmates, colleagues of Stallman, and his mother. The book has received positive reviews.