That\'s right, of the over 80 books in the Combat Aviation series, only two are not graced with artwork on the cover. Interestingly, each of the books covers one of America\'s \'stealth\' aircraft - COM 64: B2A Spirit Units in Combat and COM 68: F-117 Stealth Fighter Units of Operation Desert Storm. It seems a bit ironic, that two of history\'s hardest to spot aircraft are the only ones we\'ve used a photograph to represent, but there it is.