NICK MEERS, who pioneered panoramic garden photography, has published more than 30 travel photography books. STEPHEN ROBSON, whose photographs have appeared in many books and magazines, is well known for his detailed shots of plants and flowers. JOHN SALES joined the National Trust in 1971 and served as the chief gardens advisor for 25 years before retiring in 1998. He is now a part-time gardens consultant, lecturer, and Royal Horticultural Society judge. MARGARET WILLES is the National Trust's publisher, running the book program since 1985.