Just finished reading 'Emergency' by Neil Strauss, and it was brilliant. Very inspiring and gave me a few ideas. You don't particularly learn any skills, but it gives you ideas on where to learn things, and that was great for me. (Edit: Thinking about it, it also gives you ideas on different things to learn that maybe hadn't occurred before certainly that was the case with me)
It is also am amusing and interesting read. Got it from Amazon pre-owned for a penny plus p&p. I found it as one of those amazon 'you might like' type suggestions.
Basically the story of how Neil went from pandered author to comprehensively skilled survival expert (in both Rural & Urban environments)
Emergency-Neil Strauss
Emergency-Neil Strauss
Stoke me a clipper, I'll be back for Christmas