This is a brief and concise book of biochemistry for students across all medical courses. It presents the subject in a logical and sequential manner with adequate details. Large number of coloured diagrams, flow charts, tables, etc. have been given in the book for clear visualisation and understanding. The core areas of biochemistry like metabolism, enzymes, nutrition, etc. along with new areas like cancer, genetic engineering, molecular immunology, etc. have been given due emphasis. The clinical correlations have also been highlighted in separate coloured boxes to emphasize the relevance of biochemistry in clinical medicine. Every effort has been made to make the book attractive and student-friendly without compromising on the core subject.