One of this guy's books has been suggested for a book club, specifically Wall Street and the Rise of Hitler (1999). I've been trying to determine whether Sutton's work is taken seriously or not, but haven't been able to find much.
What worries me are some of his other book titles (The Federal Reserve Conspiracy, How the Order Controls Education) as well as quotes like this: "There is no such thing as Soviet technology. Almost all — perhaps 90-95 percent — came directly or indirectly from the United States and its allies. In effect the United States and the NATO countries have built the Soviet Union."
I can find only one academic review of any of his works, which in itself should set off alarm bells. It's a review of Sutton's book Wall Street and FDR (1976), from the Business History Review, which has this choice tidbit in it:
Wall Street and FDR is a weak specimen of "conspiracy history" and one of its sub-genres, "ruling class theory." It is poorly written and edited, digressive, repetitious, disorganized and unconvincing.
Put that, the total absence of academic reviews of his more recent books, and the fact that his books have titles like The Federal Reserve Conspiracy and America's Secret Establishment: An Introduction to the Order of Skull & Bones and you've got yourself a conspiracy theorist. Run away!
Edit: Did some further digging and there are a few more reviews of his very early work (a three-part series of books called Western Technology and Soviet Economic Development 1930 to 1945) on JSTOR - one positive, two quite negative. And I found one other review of Wall Street and the Bolshevik Revolution, which points to its "numerous" factual errors, and suggests that the book (and Sutton) are more likely targets for "ridicule" than attention from serious academics.