Applied Boolean Algebra provides a comprehensive and accessible introduction to the foundational principles of Boolean algebra and their practical applications in modern technology. Written for mathematicians, engineers, and students alike, this volume assumes only a basic background in high school mathematics and physics. Franz E. Hohn masterfully transitions from the historical use of relay circuits to the sophisticated design of logic circuits for computers. The book is structured to be both an instructional text and a self-contained reference. It explores the algebra of relay circuits, the theory of sets, and the logic of propositional functions. Detailed explanations ensure that complex topics—such as the map method and the Quine-McCluskey procedure for function simplification—are understandable for independent learners. By clearly demonstrating how mathematical models represent physical systems, the author invites readers to appreciate the elegance of these logical operations. Whether you are seeking a foundational understanding for computer science or a deeper insight into switching circuit design, this definitive work remains an essential and enlightening resource for any technical library.