This accessible textbook offers a clear and concise introduction to the core principles of electric machines, focusing on the conversion of energy through mechanical power, electrical power, torque, magnetic fields, and rated voltage. Covering the key processes behind electric machine theory, including mechanics and electromagnetism, Fundamentals of Electrical Machines enables readers to develop a systematic view of the technology. Including case studies with industry examples, the book is both theoretical and practical. Chapters cover topics such as basic concepts of electrical machines and transformers, electromagnetism, asynchronous machines and synchronous machines. It also details DC machines and includes revision questions to help self-guided learning. This book will be of interest to students in electrical engineering and engineers in all fields interested in electromechanical systems.