Tom Hagen (Keystone, SD) has been in the blackjack pits since 1990, working as a dealer, pit boss, floorman, and gaming manager for casinos in Las Vegas and South Dakota. He was table games manager for Gold Dust Gaming in Deadwood, SD, and has previously worked at the Las Vegas Club and the Resort at Summerlin. He is known and respected in the gaming industry, and is frequently called on to give expert testimony before the South Dakota Commission on Gaming.
Sonia Weiss (Glendale, AZ) is an avid card player and plays blackjack and poker at casinos in South Dakota and Las Vegas. She is a freelance writer and author with twenty years of professional experience. She has authored and coauthored numerous books, including two titles in the Everything series (The Everything Photography Book and The Everything Prayer Book).