This book investigates the development and impact of electric locomotives on global rail transportation. Brian Solomon, an established author on railway history, draws upon extensive archival research and photographic evidence to present a comprehensive overview of electric traction. The work details the technological advancements, operational challenges, and the eventual widespread adoption of electric locomotives across various continents.

This work is recognized for its thoroughness and detailed photographic record, making it a valuable resource for railway enthusiasts and historians. The author's expertise in the subject matter ensures a high level of accuracy and depth in the technical and historical accounts. It is likely regarded as a definitive study on the subject, offering insights into a critical period of railway modernization.