James Hoffmann, World Barista Champion, author of the 2nd edition of the World Atlas of Coffee and co-founder of Square Mile Coffee Roasters. Be sure to check out his brilliant Youtube channel. 

Ralf Rüller, founder of The Barn, an iconic specialty coffee roastery in Berlin. In 2018, The Barn was voted Best Independent European Coffee Shop. I’ve written a post about the impact this roastery has had on kindling my interest in third-wave coffee.

Patrik Rolf Karlsson, founder of April Coffee Roasters in Copenhagen. He hosts a podcast, Coffee with April.