Mark Dawidziak is the author or editor of 25 books, including three studies of landmark television series: "The Columbo Phile: A Casebook," "The Night Stalker Companion" and "Everything I Need to Know I Learned in the The Twilight Zone," his 2017 tribute to Rod Serling’s classic anthology series. He also is an internationally recognized Mark Twain scholar, and five of his books are about the iconic American writer. He has been portraying Twain on stage for about 45 years. His most recent book is the biography "A Mystery of Mysteries: The Death and Life of Edgar Allan Poe."