David Sayers is a horticulturist who trained at the Apothecaries garden in Chelsea (London) and the Royal Botanic Gardens, Kew. In the 1960s with help from a travel scholarship, he spent three years travelling overland to India and on to Australia participating in plant hunting forays in Afghanistan, Kashmir, Nepal, Sri Lanka, central Australia and including 18 months in Papua/New Guinea. Upon return to the UK, he continued his horticultural career and also led botanical treks to the Western Himalaya and Nepal for Thomas Cook and other companies, often the first commercial tour ever to visit some areas. In 1983 he formed his own travel company and for the next 26 years organised and led botanical tours worldwide, often pioneering new destinations. In retirement he gardens a Lincolnshire acre and writes about botanical travel. He is the author of the best selling Bradt Travel Guide to the Azores.