The Waltham Book of Dog and Cat Nutrition appeared in 1982 and a second edition was published six years later. The Waltham Book of Companion Animal Nutrition w embraces birds, ornamental fish and horses, in addition to completely rewritten and updated chapters on dog and cat nutrition. This book presents the greatly increased body of kwledge in the area in an accessible, readable way. Now that the science of nutrition has moved much more into the professional and general consciousness, it is of the utmost importance that a standard work is available which crystallises all the key points on the subject. The Waltham Book of Companion Animal Nutrition does this to the highest standard.