This title is the product of an initiative of the World Small Animal Veterinary Association (WSAVA). The aim is to describe a world standard of guidelines for diagnosis of liver diseases in dogs and cats, using both histological and clinical criteria. - standard reference for pathologists and specialists, as well as general vets in practice - only available standard for making well defined diagnosis based on histological and clinical criteria for liver diseases in small animals - describes world standardization of guidelines for diagnosis of liver diseases in dogs and cats, using both histological and clinical criteria. - supported by WSAVA giving it a worldwide appeal