The book, "Biochemistry Fundamentals and Principles" gives all the information related to the fundamental and principles of Biochemistry. It starts with the principles of origin of life and the role of biomolecules involved in it. It mainly focusses on the structure, properties and classification of major biomolecules like Carbohydrates, Proteins, Lipids, Nucleic acids and Vitamins. Each and every biomolecule have been discussed in separate chapters with neat diagrams and proper explanations.The important biochemical event of the human, metabolism, is well described in this book. The fundamental concepts about metabolism, characteristics of pathways, organic reactions and thermodynamic principles involved in it are clearly explained for the better understanding of readers. The principle reactions involved in the metabolism of carbohydrate, amino acids, protein and lipids are described. The mechanism involved in the synthesis of DNA and RNA has been neatly outlined here. The essential information related to enzyme and its properties, classification, mechanism of action along with kinetics are briefly explained.