Schiffer, Atglen, 1st ed., 1993. 208 pp., cold., + b&w photo-ills., + line drawings. D.j., 29 x 22cm. FINE. During its ten years as the Luftwaffe’s standard fighter, the Messerschmitt Bf 109 had to adapt to keep up with the rapid pace of technological developments, and the various operational demands which were placed upon it. The result was a multiplicity of variants, and few aircraft appeared in as many variants as did the Bf 109. A significant number of publications have attempted to come to grips with this multiplicity. This volume stands out through its methodology, which has led to new and different results. Supported by a large number of mostly, until now, unpublished photographs of the Bf 109, this book offers a concise overview of the later versions of the Bf 109 based on the latest known information. It draws upon unknown material including the loss reports submitted by the Luftwaffe units, as well as extensive factory and RLM records. It has been possible to gather details of more than 21,000 machines from these records, details which have enabled the authors to correct errors present in existing publications.