If you're curious about this lifestyle, or you're already neck-deep in it and want to learn a few more tricks, no library is complete without The Self-Sufficient Life (and how to live it) by John Seymour.
Here's a link: http://www.amazon.co.uk/Self-Suffici...1421265&sr=8-1
This book is a goldmine. It covers many topics, such as the philosophy of self-sufficiency, gardening, animal husbandry, farming, hunting, foraging, food preservation, building construction, and various crafts that serve the sustainable household.
Everyone can benefit from this knowledge.
(I am not affiliated with Amazon, Dorling Kindersley or John Seymour)