Minimum Gauge Railways is a technical book by Sir Arthur Percival Heywood, an English engineer and pioneer of narrow-gauge railways. Heywood shares his expertise on the design, construction, and operation of minimum gauge railways, providing valuable information for engineers and railway enthusiasts alike. His work serves as a comprehensive resource for those interested in the history and development of this unique form of transportation. Sir Arthur Percival Heywood's contribution to the field has left a lasting impact on the railway industry, making Minimum Gauge Railways an important reference for anyone seeking to understand the intricacies of these specialized railways.