This text investigates the historical development and technical application of various systems of units used in the fields of electricity and magnetism. Leo Young, an experienced engineer, provides a rigorous examination of how different unit systems—including CGS, MKS, and SI—were formulated and how they influence the mathematical representation of electromagnetic phenomena. The book serves as a foundational reference for understanding the evolution of measurement standards in electrical engineering.

Experts recognize this work as a specialized technical resource for students and practitioners requiring a deep understanding of unit standardization. Readers frequently note the high level of technical precision and the clarity with which the author navigates complex dimensional analysis.