Martyn Cornell is an award-winning writer on beer and brewing and an internationally recognized expert on the history of beer and beer styles who has visited breweries and drunk in bars from Norway to Australia, and from China to Brazil. He is a founder member of the British Guild of Beer Writers, his work has been published in more than 30 magazines and newspapers from Hong Kong to the United States and his words have been translated into languages including German, Italian, Greek, Swedish, Polish, Spanish and Portuguese.

He is a former Beer Writer of the Year and an eight-times trophy winner in the British Guild of Beer Writers awards, including five times in a row, 2011-15, and has also been a runner-up in the North American Guild of Beer Writer awards two years running. He is an IBD-certified beer judge and has judged at numerous beer competitions both in the UK and abroad, including the World Beer Cup. He has worked with a number of brewers in the UK and abroad on projects involving old beer styles and beer history, with the Campaign for Real Ale in the UK on its Learn and Discover educational initiative, and with the University of Gastronomic Sciences in Italy on coursework for its beer modules. He has appeared on radio, including the Jeremy Vine Show on BBC Radio 2, and on television talking about beer and beer history.