[OpenAFS] Comments on new openafs book?

[Andreas Hasenack]

Can anybody comment on a new OpenAFS book that is being sold at least at 
Amazon?
http://www.amazon.com/gp/product/3540366334/ref=wl_it_dp/102-6310783-0300967?ie=UTF8&coliid=I1SVBQWSTQRG5X&colid=1NJ8GXT5879ZN

"Distributed Services with OpenAFS: for Enterprise and Education (Hardcover)"
by Wolfgang A. Gehrke (Author), Franco Milicchio (Author)

It's quite recent, but there are no reader's reviews yet, and it's a bit 
expensive to buy in the dark.