D. G. Hessayon

David Gerald Hessayon OBE (13 February 1928 – 16 January 2025) was an English author and botanist who is known for a best-selling series of paperback gardening manuals known as the "Expert Guides" under his title Dr. D. G. Hessayon. The series started in 1958 with ''Be Your Own Gardening Expert'' and in 2008 it celebrated its 50th anniversary and the 50 millionth copy in print. They have become the best selling gardening books in history. Provided by Wikipedia