[LAU] New book - anyone read it??

[Ketil Thorgersen]

Hi list

Searching for literature for a teacher training course I will be
starting next year, I found the following book from 2010:

"Free Music Software: Gnu Lilypond, Mplayer, Ffmpeg, Supercollider,
Audacity, Ardour, Impro-Visor, Jokosher, Sox, Jfugue, Musescore,
Qtractor" by LLC books.
http://www.amazon.com/Free-Music-Software-Supercollider-Impro-Visor/dp/1156477360

There are no reviews to be found or anything so I was wondering if
anyone here has any experience with it. What kind of book is it? Is it
worth buying? Who has written it?

Best regards
Ketil Thorgersen