This book is a practical guidebook in biochemistry, for medical as well as life sciences' students. The book covers reference values, sample collection procedure and detailed prool to perform experiments. Each experiment starts with a brief introduction of the prool, followed by specimen requirements and procedure. The procedures are presented in a very lucid manner and discuss details of calculations and clinical interpretations,The book is divided into 29 chapters, It offers references, general guidelines and abbreviations and provides principles and procedures of clinical biochemistry tests, along with their diagnostic importance.