Hard to recommend such a small publication when the entire thing is now available for download at the website.
Markets are conversations. This is good.
Mass marketing is not a conversation. That is bad.
The authors leave themselves open to some fair criticism - their ideas aren't fully developed nor are their any clear suggestions as to implementation. It reads more as a protestation against existing norms than a viable alternative.
Find a second-hand copy. It's worth a read but not quite worth the price.