This textbook for a one-semester course in Electrical Circuits and Devices is written to be concise, understandable, and applicable. Every new concept is illustrated with numerous examples and figures, in order to facilitate learning. The simple and clear style of presentation is complemented by a spiral and modular approach to the topic. This method supports the learning of those who are new to the field, as well as provides in-depth coverage for those who are more experienced. The author discusses electronic devices using a spiral approach, in which key devices such as diodes and transistors are first covered with simple models that beginning students can easily understand. After the reader has grasped the fundamental concepts, the topics are covered again with greater depth in thelatter chapters.