I bought a book titled The Secret World of Jon and Kate authored by Al Walentis, and Co-Authored by Polly Kahl who claims to be licensed to practice psychology while she practices medicine by doing a psychological profile on the children of Jon and Kate Gosselin. In the book she also admits to snooping around the private property of Kate Gosselin. It was discovered that Polly Kahl is in fact not licensed to practice in her field since 2007. Polly Kahl also has a private practice located at 2130 Penn Avenue West Lawn, PA 19609. How... read full review »