I'm reading the book at the moment, and it's brilliant. I'd already been struck by the Utopian parallels between fascism and neoliberalism, but I confess I've only just started to get a grasp on contemporary Marxist economics this year, know little about Soviet history, and have never read any Marx. [Gasp!]
The book is also a very useful history of neoclassical economics, which I assumed was born more-or-less fully-formed in the late 19th century, but apparently many key components were still falling into place until well into the 20th century.
Also this: