The analysis of electric circuits and networks is a fundamental tool of the electrical engineering student, since it provides the foundation for the study of linear systems, electronic circuits, power systems, control systems, and communication systems. A strong background in methodical circuit analysis is essential for intelligent and successful design, as well as for using the computer for the analysis of complex networks. The aim of this text is to present a reasonably rigorous treatment of the methods of circuit analysis and their applications, it is intended for use by sophomores and juniors in electrical engineering.