In this issue of Veterinary Clinics: Small Animal Practice, guest editors Drs. Kate Aicher, Jo�o Cavasin, and Jonathan A. Lidbury bring their considerable expertise to the topic of Hepatology. Top experts highlight important topics in the field of small animal hepatology, areas of major recent advances. Topics cover cytological and histological evaluation of the liver; formulating diagnostic, therapeutic, and nutritional plans for common liver diseases of dogs and cats; newly discovered diseases such as domestic cat hepanavirus; and previously poorly characterized liver disorders, such as granulomatous hepatitis.