John Bejakovic is a business copywriter who writes a daily newsletter at bejakovic.com, an online journal and wrote a book about influence techniques that he has learned. He acknowledges the work of Robert Cialdini and then builds on Cialdini's work.

His book, with the shortened title "The 10 Commandments of Con Men..." gives 10 different influence techniques along with stories, research and John's own experience in learning and using these techniques. These are all areas that any social engineer can use to enhance their own skills.