Stallcup's "Design Letters and Code Letters for Motors" is a specialized publication in electrical engineering and motor systems. This guide focuses on the significance and application of design letters and code letters used to classify electric motors. These letters provide essential information about a motor's performance characteristics, such as starting torque, current, and efficiency, which are critical for selecting the right motor for specific applications. The book offers detailed explanations of the standards and regulations governing these classifications, ensuring compliance and optimal motor selection. Targeted at electrical engineers, technicians, electricians, and industry professionals, Stallcup's "Design Letters and Code Letters for Motors" is an invaluable resource for understanding and utilizing motor classification systems to enhance the performance and reliability of electric motors in various settings.