A successful sommelier is hospitable, organised, driven and sensible. He should be adaptable to both employer and client interests.

Wine writer Charlie Leary, who lives in Panama and used to run the Inn at Coyote Mountain in Costa Rica, provides a sommelier-oriented introduction to some of the best coffees in the world.

"My mixed Old World-New World palate and mentality relate to many people and bring a unique perspective when it comes to creating a wine list."