My dad had Life's Picture History of WWII copyrighted in the 1950's. I have the Time hardback WWII series copyrighted in the 1970's.
It is interesting to compare the captions to the same pictures. The first version, my Dad's, is a "God is on our side" type book while the later version (Time's) is full of either corrections or revisionism depending on your point of view.
Just compare old War documentaries, like “Victory at Sea” with what’s out there now.