The Physics o f Plasmas provides a comprehensive introduction to the subject suitable for adoption as a self-contained text for courses at advanced undergraduate and graduate level. The extensive coverage of basic theory is illustrated with examples drawn from fusion, space and astrophysical plasmas. A particular strength of the book is its discussion of the various models used to describe plasma physics including particle orbit theory, fluid equations, ideal and resistive magnetohydrodynamics, wave equations and kinetic theory. The relationships between these distinct approaches are carefully explained giving the reader a firm grounding in the fundamentals, and developing this into an understanding of some more specialized topics. Throughout the text there is an emphasis on the physical interpretation of plasma phenomena. Exercises are provided throughout. Advanced undergraduate and graduate students of physics, applied mathematics, astronomy and engineering will find a clear but rigorous explanation of the fundamental properties of plasmas with minimal mathematical formality. This book will also appeal to research physicists and nuclear and electrical engineers.