This textbook covers the essential fundamentals and applications of current techniques and methodologies. It is presented in a sharply focused manner, without overwhelming or excessive detail. Each chapter contains information in a systematic and logically organized manner. It is a perfect introductory textbook for any reader needing to learn the basics of the subject, assuming they have little prior knowledge of it. In this revised and updated edition, the focus is on building upon the strengths of the previous editions to present biophysics in an even more precise and streamlined manner. Additionally exciting new advances from the field has been incorporated. Throughout the book, explanations of basic concepts have been updated and strengthened with examples from new research.