Sorry, Richard Stallman is really an amazing character, but this book, at least in the form published from O'Reilly, is not worth the money. Neither does the author give a detailed description of the free software movement in general nor does he give interesting
personal details about Stallman.
If somebody is interested in a description of his eyes, which have a special glance, as I was told in this book, I can assure him that he will find plenty pages decribing them and his habit in general in a simple minded way. Additionally the author provides senseless information, trying to point out that Stallman is somehow something like an autist (he has to be, because he has done amazing work, isn't it?), and a born politically activist successing his mother, who once stood up against rebuilding their flat.
I was very happy when I received the book, now I'm disappointed. This is the result when journalists try to deal with an issue they don't understand. At least there is a positive message at the end: This book is published under the GFDL, so probably an other author more gifted has rewritten entirely.