Found in 3 comments on Hacker News
steve19 · 2010-12-14 · Original thread
The reviews on Amazon look really suspicious.

http://www.amazon.com/4-Hour-Body-Uncommon-Incredible-Superh...

In the past few hours since the book was put on sale, there have been 90+ five star reviews.

Either this is one of the best book every published, of the publisher/author has been organizing or paying for reviews.

steveklabnik · 2010-12-12 · Original thread
I haven't read it yet, but it seems more 'body hacking' than 'fitness,' exactly: http://www.amazon.com/4-Hour-Body-Uncommon-Incredible-Superh...