
The Second edition of The Creative Mind has been updated to include recent developments in artificial intelligence, with a new preface, introduction and conclusion by the author.
Although it's got all sorts of things I disagree with, a decent overview of, "can we nail down creativity more specifically than just 'flash of inspiration'?", and in particular how it ties in with "normal" problem solving, is Margaret Boden's book: http://www.amazon.com/Creative-Mind-Myths-Mechanisms/dp/0415...
