Just picked this up on Friday, and I'd just about finished it by Sunday evening. Its a collection of R. Stallman's lecutures & articles on free software, copyright, copyleft, the GNU license and so on.
Recommended with anyone with even a passing interest in the free software movement. You will be much richer (intellectually) for having done so.
For my deeper thoughts…
Well, its not that I agree with everything Stallman says. Not many people do. His insistence on *not* using the term "Open Source", his comments on OSS hurting the community, etc. seem misplaced at best. His continual attempts at renaming Linux to GNU/Linux similarly seem out of step.
That said, the articles cover a wide range of topics, from the historicity of copyright and the Constitution, how lawmakers & corporations have perverted copyright for their own gains. His coverage of "trusted computing" is of interest to *every* computer user.
All in all, an excellent book, and profits go to benefit the FSF (everything in the book is available on the web, but this makes for a nice little desktop collection).