This is a new series for me at least. This is a nice hardback book that covers the Grumman F4F Wildcat and the FM series of Wildcats built by Eastern Aircraft Division of General Motors during WWII. The Wildcat continued in production and to fight throughout the war even as newer and better aircraft became available.
The book has 12 chapters each covering the different variants. The layout is the first chapter on the XF4F-2, followed by chapters each on the following: XF4f-3 and F4F-3, the F4F-3 in detail, XF4F-5, XF4F-6/F4F-3A, F4F-3S, XF4F-4, F4F-4, F4F-7, XF4F-8, FM-1, FM-2 and Wildcat in combat.