Responding to the need for a clear, up-to-date introduction to the field, this book explores surface integral equations in electromagnetics and presents their numerical solution using the MOM technique. It covers a range of topics, from the initial underpinnings of MOM to its current applications. The book focuses on applications to radiation and scattering problems, including antenna design and analysis as well as radar cross section prediction. It also highlights recent techniques, such as the fast multipole method for electrodynamic problems. The text derives or summarizes the matrix elements used in every MOM problem and explains the approach used in and results of each example.