David Hamilton is a forager, horticulturist and explorer. He started experimenting with wild food as a teenager, making soup from nettles found in his family garden and has been foraging seriously for more than 25 years. He has hitched, walked, cycled and driven all over the world in search of wild food and has taught Mary Berry, Ben Fogle and thousands of others how to forage. He holds a degree in food science and nutrition and a diploma in horticulture and leads the Guardian Masterclass on foraging. He is the author of several books, including Wild Ruins and The Self-Sufficientish Bible, and lives in the south west of England with his partner and two young sons. They are keen foragers and refer to wild food as 'Daddy food'.