This textbook provides an introduction to circuits, systems, and motors for students in electrical engineering as well as other majors that need an introduction to circuits. Unlike most other textbooks that highlight only circuit theory, this book goes into detail on many practical aspects of working with circuits, including electrical safety and the proper method to measure the relevant circuit parameters using modern measurement systems. Coverage also includes a detailed discussion of motors and generators, including brushless DC motors, as these are critical topics in the robotic and mechatronics industries. Lastly, the book discusses A/D and D/A converters given their importance in modern measurement and control systems. In addition to covering the basic circuit concepts, the author also provides the students with the necessary mathematics to analyze correctly the circuit concepts being presented. The chapter on phasor domain circuit analysis begins with a detailed review of complex numbers as many students are weak in this area. Likewise, before discussing filters and Bode Diagrams, the Fourier Transform and later the Laplace Transform are explained. Provides both a clear explanations, theory as needed, and experimental results for electrical circuits; Covers measurement techniques, in addition to the basic chapters on circuit analysis; Discusses in detail basic DC and AC machines including brushless DC motors and stepper motors; Includes an entire chapter on Analog to Digital Converters and Digital to Analog Converters, a complete review of complex numbers and complex algebra, and a chapter on electrical safety; Includes examples, with solutions, as well as exercises for each chapter.