This book details the history and technical specifications of the London and North Eastern Railway's locomotive fleet. It covers the evolution of steam and diesel traction under the LNER, examining the contributions of key designers and the operational context of the railway. The work likely draws upon archival records, company publications, and photographic evidence to present a comprehensive overview of these iconic machines.

This book is likely regarded as a specialized historical and technical reference for railway enthusiasts and historians. Its focus on the LNER's locomotives suggests a detailed examination of engineering achievements and operational history within that specific company. The content would appeal to readers interested in the mechanics and historical context of British railway development during the LNER era.