The book features brief history of the development of electrical science and engineering, highlights the content and basic concepts of circuit analysis; provides 227 worked out examples and more than 1500 illustrations. The matter has been tested over a six year period at the university of Mussouri – Rolla and with professionals and executives. Improvisations and updates have been made to suit their needs. Emphasis has been made on problem solving based on underlying fundamental concepts and how to apply them. Thus, a practical orientation and applicability of each topic has been discussed to be able to relate to real life problems.