I am computer architect, and this book is a gold mine for me: a) After 17h the entire way go home b) An employee who works too is a danger to a structure c) Be able to plan and conduct meetings that last less than 10 minutes d) Turn on ideas (1 hour per day) e) Keep it simple etc. Common sense stuff, but not always accepted in everyday life. The example of the success of ruby on rails is tangible proof of the validity of the ideas of this book.