An introduction should be just that, an introduction. At the very least, this means that exposition should predominate over commentary. When a work reverses those roles, the result is commentary, not introduction, regardless of title or pretensions to the contrary.This is basic to the genre, and has nothing to do with allegiance on part of writer, reader, or reviewer. The axiom that a reader cannot judge intelligently without first understanding what is being judged (in this case Marx) underlies the significance of exposition to an introduction, and speaks to an elementary point that apparently eludes the overzealous reviewer below. Properly understood, Elster's work is commentary, with its own agenda, and scant if any attention to the needs of introduction, let alone a good one. (Notice how Elster's preferred methodology is given priority of place and then used to critique what little is presented of Marx's.) I would have no quarrel were the book titled *Elster on Marx* or *Making Sense of Marx*. Nor do I necessarily have a quarrel with those who criticize or revise Marx. But to title a work Introduction and then bury a smattering of exposition inside a running critique - no matter how worthy or not the commentary - is to do reader and purchaser a disservice. Unfortunately, the book is about Elster, not Marx, and while there are many other introductions that do the job properly, this is not one of them. And, no, Mr. Ver Sluys, this is not about that tiresome chestnut of subservience to Marx - for that, I suggest you check your own effusions on Elster. What it is about is truth in packaging for readers who wish to make up their own minds.