If this book was just bad then maybe that would be OK, but I fear it may also be dangerous. There is a quote on the cover from guru and entrepreneur Seth Godin that reads: 'Ignore this at your peril.' The main messages the reader might get from such a statement is 'ignore this' and 'peril' - these provide inadvertently pertinent warnings.
Rework: Change the way you work forever is written by Jason Fried, who co-founded a small to medium-sized software company called 37signals in Chicago, and by David Heinemeier Hansson, who joined later. 37signals is a famous company in the world of US tech start-ups, because of its launch of an open-source web application framework called Ruby on Rails.
The authors are demigods in the space that is known as Web 2.0, and they have many 20-something devotees in the US. They are also prolific bloggers, and their first business self-help book was apparently well received. They are happy to be called arrogant, and famously responded to their critics by putting up a slide at a conference that said 'fuck off'.