Michael Witwer is the author of the critically acclaimed EMPIRE OF IMAGINATION: Gary Gygax and the Birth of Dungeons & Dragons, a GeekDad Best Book of 2015. Michael is widely considered an expert on D&D history and has spoken on the topic at Google as part of itsGoogle Talks series, on NPR’s "All Things Considered," as well as at major book and gaming conventions such as the Boston Book Festival, Gen Con and Origins.