Mark Walker’s (a.k.a. Professor Horn) credentials read like a tenured faculty member from Hogwarts, Harry Potter's school of wizardry. The difference is his resume isn’t fiction. From his humble beginnings he's been a serious student of conjuring and Punch & Judy history as he set out to learn the trade rather than just the tricks of the trade.
A leading expert on the history of magic in Baltimore City, midnight ghost shows, and Punch & Judy in America, Mark has been a guest lecturer at the Los Angeles Conference on Magic History, the Magic Collectors' Association, the New England Magic Collectors' Association and London's Magic Circle.