On March 7, 2011, Kevin Poulsen talked about his widely praised book, Kingpin. Professor Jonathan Zittrain describes his book as "a vivid portrait of the major players in the latest wave of computer crime. Building on the best of the police procedural tradition, Kevin Poulsen lays out in clear language the technologies and methods employed by the criminals and crime fighters alike, all the while crafting a sympathetic character study of the conflicted gray hat, Max Vision, at the heart of it all."