Paul Krugman, The Return of Depression Economics

Paul Krugman, this year's Nobel laureate in Economics, is a Princeton professor and a New York Times columnist. He predicted the end of the housing bubble early.

His new book takes on the crisis.

Krugman, Paul. The Return of Depression Economics and the Crisis of 2008. W. W. Norton, 2008.

There's a review in Daily Kos here.