This is one of the most ignored and probably most influential books on management and organization during the 20th century!

Mandatory reading, as this is the gurus secret source! You certainly can't loose by reading, and it will probably change your outlook while reading it.

The only complaint is that it is written in highly academic jargon, with words you may have to use a dictionary to understand the first time, especially if you're non-British and non-university educated.