"B R Diecels in Detail" is a book focusing on British Rail (1948-1997) railwayana, specifically exploring the details of diesel locomotives from the era. This book, part of the transportation collectables genre, provides in-depth information and insights into the British Rail diesel fleet, making it a valuable resource for railway enthusiasts and collectors alike. Covering the history, design, and operation of these locomotives, this book offers a comprehensive look at the British Rail diesel locomotives from the mid-20th century.