Since the original series of ''Practical Building Conservation'' appeared in 1988, it has become a standard reference for those caring for historic buildings large and small: essential reading for architects, surveyors and building managers, as well as conservators. This new and much expanded set of 10 volumes has been updated to provide a fully comprehensive reference featuring the latest techniques and materials. ''English Heritage'' is renowned for its expertise in the conservation of buildings, gardens and archaeological sites and these books are an accessible distillation of many years of experience. The look in detail at building materials ranging from the ancient to the modern and are studded throughout with practical advice.