The book "Anticipations of the General Theory" examines whether John Maynard Keynes' work was a unique discovery. Don Patinkin argues that Keynes was original, different from the Stockholm school and Michal Kalecki. The problems they focused on were not the same as those in the General Theory. Patinkin critiques Keynes' theory of effective demand and discusses his monetary theory and policy thinking. He also looks at the relationship between Keynesian theory and national income accounting in the 1930s.