Instruct: Classify the given Amazon review as either positive or negative.
Query: Speculative, not to recommend

Spending a fair amount of time perusing criminological literature I was expecting this book with great interest. Only to be disappointed: presented as a serious study on Russian mafia this book is a highly speculative piece of journalism. Unfortunately, however, it is not as easy to read. A windy introduction is followed by a collection of poorly structured chapters stuffed with unnecessary specialist jargon.