...a Guardian Book of the Year. Enigma, by the geographer David Harvey, presents the reader with a jargon-free Marxist analysis of the current crisis of capital. To get a good idea of the book, I recommend watching this video of a lecture Harvey recently delivered. Some of the ideas explored in the lecture are explored with greater depth in the book.
The main theme in Harvey's work is the limits of capitalism. What he often means by this (the limits of capital) is that the economic system, which generates a surplus for the purpose of extracting a profit, has not run of steam so much as places to absorb the source of profits—surplus. And what absorbs a surplus is always debt. This debt is the enigma and limit of capital.