Ely Devons (1913–67) was a British economist and statistician who made notable contributions to a variety of areas. Originally published in 1950, this book contains a study of the way in which the Ministry of Aircraft Production planned production during the Second World War. Based upon Devons' firsthand experience within the planning division of the Ministry, the text forms a highly personal record of the ways in which production was planned, incorporating criticisms and judgements where necessary. A linear historical perspective is avoided, in favour of a systematic approach focusing on various aspects of the production process in turn. This book will be of value to anyone with an interest in British aircraft production and military history.