The author provides detailed instructions on hematological diagnostics, therapy, and interpretation of findings. The most important blood diseases are excellently illustrated and presented in a practical manner, taking into account the differential diagnosis of various key symptoms. Many patients in small animal practice suffer from blood disorders. The interpretation of findings, incorporating advanced diagnostic procedures, is often very challenging for veterinarians. This practice-oriented reference work presents various diagnostic procedures in detail and offers guidance for interpreting findings. It also extensively addresses the clinically most significant blood diseases in dogs and cats. Reinhard Mischke introduces the fundamentals of the physiological development and morphology of blood cell lines. He further explains advanced diagnostics.