Gaz Regan—the bartender formerly known as Gary Regan—is the cocktail columnist for The San Francisco Chronicle, and the author of The Joy of Mixology, The Bartender’s Bible, and the bartender’s GIN compendium, among others. He hosts the ArdentSpirits.com web site, publishes the ardent spirits email newsletter (since 1999), and manages the Worldwide Bartender Database.