Don Hobbs, a member of the Baker Street Irregulars, will talk about collecting in general, Sherlock Holmes, collecting Sherlock Holmes memorabilia and more. Sherlock Holmes is more popular than ever with two TV adaptations and two feature films. The discussion will be moderated by Joe Fay, manager of rare books at Heritage Auctions, who will attempt to solve the mystery of why one man from Flower Mound owns 3,000 books he can't read.