Ignacio López Villalba, Ignacio Mesa Sánchez This manual describs the main differential diagnosis algorithms used in haematology and biochemistry in small animal practice. It is designed to help veterinary professionals optimise their daily work in clinical practice by providing them with the tools necessary to correctly diagnose the main conditions in which haematology and biochemistyr play a fundamental role, and establish their aetiology based on specific clinical signs. The authors, both specialists in their respective fields, provide a variety of additional resources (table, images, etc.) to complement the diagnostic algorithms, making this book an essential manual for daily consultation by those working with cats and dogs in clinical parctice.