This is the thoroughly revised and updated edition of the book. It has been written in a very lucid and simple language to serve as a handy book for the students of medical laboratory technology, describing and illustrating clinical biochemistry which forms an important part of the subject. Most of the chapters have been revised and updated, keeping in view the recommended syllabus and the requirements of the students. Clinical relevance of the subject has also been provided at different places to help the readers correlate basics of the subject with the clinical point of view. The book will not only help the students to have a better knowledge of the subject but also lay a strong foundation for integration of biochemical processes in clinical subjects, thus helping them in their journey to become highly skilled medical laboratory technologists.