I just ordered it from Amazon, but, while I patiently wait for the international pouch to cross the ecuator, I googled it up on the Web to find out that the online discussion on concept and context of the idea has probably outgrown the content printed in the book itself.
Dicussions, comments and [...]

As a kid I always had a fascination for trees, as they provided a whole new dimension to imagination. As soon as my feet were airborne, my mind entered their worlds, in which I could climb steep mountain summits or defend the walls of a foreign legion fortress in the desert of Sahara.
As it is, [...]