David Joyce is a gardening writer and plant adviser. Books which of which he is author or general editor include Topiary and The Art of Training Plants, Garden Style: an illustrated historyof design and tradition, Hanging Baskets, Window Boxes, and Containers and Windowbox Gardening. The technical advisor, Christopher Brickell, is one of the most knowledgable and respected experts in the field of gardening. The Vice-President and former Director-General of the Royal Horticultural Society, he has been editor or technical advisor on several major gardening encyclopedias.