The study of chemical processes related to living organisms is referred to as biochemistry. It is a sub-field of both biology and chemistry. It is divided into fields like molecular genetics, protein science, and metabolism. Biochemistry focuses on how biological molecules give rise to processes that occur within and between the living cells. It also helps in the study and understanding of tissues and organs of an organism. Biochemistry focuses on the structures, functions, and interactions of biological macromolecules such as nucleic acids, carbohydrates, protein, and lipids. The topics included in this textbook on biochemistry are of utmost significance and bound to provide incredible insights to readers. Some of the diverse topics covered in this book address the varied branches that fall under this category. In this textbook, constant effort has been made to make the understanding of the difficult concepts of biochemistry as easy and informative as possible, for the readers.