The interdisciplinary field of science that uses methods and approaches of physics to the study of biological phenomena is known as biophysics. It is concerned with the study of physical quantities such as stress, electric current, entropy and temperature in biological systems. The field uses a variety of techniques such as fluorescent imaging techniques, X-ray crystallography, atomic force microscopy, NMR spectroscopy, small angle scattering and electron microscopy. Biophysics is closely linked to other areas such as molecular biology, physiology, computational biology, developmental biology, nanotechnology, physical chemistry and systems biology. The domain finds its applications in the areas of healthcare, radiology, nanomedicine and microscopy. The book studies, analyzes and upholds the pillars of this discipline and its utmost significance in modern times. Biophysics is an upcoming field of science that has undergone rapid development over the past few decades. Coherent flow of topics, student-friendly language and extensive use of examples make this book an invaluable source of knowledge.