Michael Butt began his career working as a bartender at some of London's finest cocktail bars before setting up Soulshakers, a London-based drinks consultancy firm responsible for the cocktail menus at some of the city's best bars and restaurants. He also organises bars for the UK's biggest music festivals, such as Glastonbury and Reading, and is a brand consultant for the international drinks companies Southern Comfort, Red Bull, Jack Daniels, Campari and Finlandia Vodka. The author is based in London.