![Radical Man One JPEG HUMINT Done Wrong](http://phibetaiota.net/wp-content/uploads/2009/08/Radical-Man-One-JPEG-300x225.jpg)
Charles Hampden-Turner's book RADICAL MAN: The Process of Psycho-Social Development, remains one of the most important works with respect to making the most of our one inexhausible resource, the human brain. Below are covers of the book in both editions, with links to the Amazon page for each.
![Radical Man New New Cover](http://phibetaiota.net/wp-content/uploads/2009/08/Radical-Man-New-245x300.jpg)
![Radical Man Cover Original Book Cover](http://phibetaiota.net/wp-content/uploads/2009/08/Radical-Man-Cover-175x300.jpg)