The book "Field Theory of Guided Waves" by Robert E. Collin, published by Oxford University Press, is a comprehensive treatise on the mathematical and physical principles of guided waves. The second edition covers a wide range of topics, including basic electromagnetic theory, Green's functions, transverse electromagnetic (TEM) waves, transmission lines, waveguides and cavities, inhomogeneously filled waveguides and dielectric resonators, excitation of waveguides and cavities, variational methods for waveguide discontinuities, periodic structures, integral transform and function-theoretic techniques, surface waveguides, and artificial dielectrics. Each chapter delves into specific aspects of guided wave theory, providing detailed explanations, mathematical derivations, and practical applications. The book also includes a mathematical appendix that covers essential vector analysis, dyadic analysis, matrices, calculus of variations, and other advanced topics.The book "Field Theory of Guided Waves" by Robert E. Collin, published by Oxford University Press, is a comprehensive treatise on the mathematical and physical principles of guided waves. The second edition covers a wide range of topics, including basic electromagnetic theory, Green's functions, transverse electromagnetic (TEM) waves, transmission lines, waveguides and cavities, inhomogeneously filled waveguides and dielectric resonators, excitation of waveguides and cavities, variational methods for waveguide discontinuities, periodic structures, integral transform and function-theoretic techniques, surface waveguides, and artificial dielectrics. Each chapter delves into specific aspects of guided wave theory, providing detailed explanations, mathematical derivations, and practical applications. The book also includes a mathematical appendix that covers essential vector analysis, dyadic analysis, matrices, calculus of variations, and other advanced topics.