Daily Show / Colbert Report / Nightly Show / The Opposition discussion

So, I just found out a biography (although unauthorized) of Stephen Colbert came out last year. Did everyone else know about this? Has anyone read it yet? I'm curious if it's worth the time to read, or if it's flimsy and nothing really insightful (since it's unauthorized and therefore probably didn't get any real interview time with Colbert).

And Nothing but the Truthiness: The Rise (and Further Rise) of Stephen Colbert