Hey - I'm glad you guys liked the book cover!
I admit that I didn't read the book in its' entirety, but I was inspired by the title & subject to do something that I thought might work... I sketched out a couple of ideas and jumped into Photoshop...
I can see doing it a number of different ways... as graphrix mentioned, it's done in a silkscreen/comic-book style... there's a pop-sensibility to it, but, I don't know if it addresses' the subject matter "seriously" enough... to me, that kind of hand-made image treatment - silk screen, hand-drawn text - suggests low-budget-but-ambitious, rebellion, grass-roots, of-the-people, etc... something along the line of a political protest poster or punk-rock handbill... Something photo-realistic would convey something else altogether... bigger budget, perhaps, clarity of vision (if the illustration was super-tightly conceived & rendered) see <a href="http://www.amazon.com/Freakonomics-Revised-Expanded-Economist-Everything/dp/0061234001/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1209325125&sr=1-1">Freakonomics'</a> book cover with the apple/orange for a decent example of photo-real illustration... If the book cover was just text - something along the lines of <a href="http://www.amazon.com/Blink-Power-Thinking-Without/dp/0316010669/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1209324974&sr=1-1">Blink</a>, I think the suggestion would be the tome was more academic... any of those treatments would be good ones if done well, and would probably be the prerogative of a publisher...
Anyway... I don't design book covers for a living... I sell real estate... I just happen to collect books and have been drawing since I was a kid... it's something I enjoy...
I just thought I'd do something that came to me that morning...
