'The Sherry Triangle' is about sherry; how it is made, who makes it, where it is made, what it is and when it arrived in Spain. It looks at the product itself and the towns and area in which it is found. In time it covers a period from beyond 1000 BC right up to the present day. In space it covers 140 square kilometres of Andalucia bounded by the towns of Jerez de la Frontera, Sanlúcar de Barrameda and El Puerto de Santa Maria. It does much more than just scratch the surface. The book is lavishly illustrated with photographs taken by the authors.