Graham Hoyland is a best-selling author, mountaineer, sailor, and producer and director of adventure films. He has worked on all seven continents - from the shores of Antarctica to the highest peak of the Himalayas - for the BBC, Discovery, Travel Channel and NBC, and was the 15th Briton to climb Mount Everest. He is the author of Merlin: The Power Behind the Spitfire, Mosquito and Lancaster, published in 2020 by HarperCollins.