I received this book the other day and I must state up front that the amount of research that Mr. Caldwell has put into this book is truly impressive. This penultimate account should serve as the standard reference for other historians when they write about the Luftwaffe fighter arm's response to the Allied daylight bombing campaign. Caldwell's narrative brings to life the fact that leadership and discipline was the key to success in aerial combat as much as the technical/aerodynamic component. He adroitly points out when Allied or German planners made a mistake and what effect that had on the respective aerial forces involved in combat on a particular day. Caldwell is at his best when highlighting unique or noteworthy accomplishments by both sides, such as when an experienced US Bombardment Group's gunners successfully fend off German fighters or when the Luftwaffe fighters are able to break up the Allied fighter escort formation (a rare event) and get through to the bombers. I cannot emphasize too much, however, that it covers the campaign from the perspective of the Luftwaffe fighter arm. For example, all the "in cockpit" accounts are by German pilots. However, Caldwell has not neglected the contributions of the flak arm to the defense of the Reich as there is an excellent table on page 455 which gives the breakdown of flak/fighter losses for the Eighth Air Force. By comparing the narrative to the table, you gain a good sense of US and British (mostly fighters) aerial losses and German aerial losses versus flak/aerial losses and kills. Again, I cannot stress how thorough the author has been with this book. It literally has everything. One final note - although the book title focuses on day fighters, Caldwell has not neglected to cover the Luftwaffe's use of night fighters to attack USAAF heavy bomber formations. Nor are the daily accounts limited to Germany proper, as the book also covers events that took place when US bombers raided targets on the periphery of Germany itself. These raids are especially interesting because they often involved Croatian, Hungarian, post-Armistice Italian, and other air forces allied to the Axis powers. The book, as one might surmise, is organized chronologically with each chapter covering one or more months of aerial activity. One big plus is that Caldwell includes the Luftwaffe "Grid" map for Western Europe. Highly recommended!