While many know about the format of some of the typical 4-1-9 Nigerian scam letters, what is largely unknown is the organized nature of the network of criminals responsible for sending them. This book illustrates how these criminals are organized; how they operate, communicate, and transfer money; and why they are so successful. Based on the author's five-year investigation as a U.S. Federal Agent, the book draws on information from numerous sources and extensive victim interviews, as well as the actual words of the scammers to show an unbiased picture of how these criminals operate.