This book is not as flawless or as originally brilliant as American Fascists; also, there are passages that are more rant than analysis, and places where is lack of familiarity with the full spectrum of issues shows through -- as in some of his discussions of the economic crisis, and of Universities. But these are quibbles. The book is a powerful indictment of the rise (and triumph) of corporatism in the United States. It is grim, the picture he paints.
His main focus, though, is not on the political or on the economic, but on the psychological -- the marketing of illusion that has been crammed down the mouth of the American public, who is now essentially functionally illiterate, whose critical faculties have been undermined by a constant diet of images -- a culture drowning in rhetorical and mythological modes of thought. As such the book follows on the work of Neil Postman, Boorstein, and Walter Lippmann - and attempts to show -- with considerable success - that we have, as a nation, lost the capacity for democratic self-governance -- and that corporatism has won.
He also understands the similarity of this state of affairs not only with Huxley's Brave New World, but with the process of fascistization in Italy and in Germany (for the latter, see vol. II of Evans; there are books, but none ideal that I know of, for Italy...
The book is essentially pamphlet, and so can be read in a day.