I'm responsible for securing our company's network, which includes writing security policies and guidelines for users to follow. Like many people in the industry, much of my security training has been focused almost exclusively on the technologies used to attach and defend networks. But more and more, I think we are all beginning to realize there is a very important human element involved as well. Mitnick does a great job in this book of giving the security professional insight into the social engineering techniques used to take advantage of either weakness or ignorance in a particular target. I've found this book as useful as any in my library.