Yet another master piece from J Crandall and crew. Reviewing the bibliography reveals mostly archival research with few previously publications being used for reference. The author's access to the air and maintenance crews provides a level of research that is relatively rare and matched by very few aviation authors today. Lavishly illustrated with previously unpublished photographs and original artwork, this book is well worth the money. It can be purchased directly from Eagle Editions at http://www.eagle-editions.com