Mark Danna is a professional word search puzzle maker and author of 15 word search books. He is the coauthor of 365 Brain Puzzlers (Workman), American Mensa's long-running, annual, page-a-day puzzle calendar. Danna has also been employed as a staff writer for Who Wants to Be a Millionaire , a sports director on Caribbean cruise ships, and a professional Frisbee® player.