Now you see Trotsky standing next to the podium where Lenin is speaking...

Now you don't

I am still finishing my reading of Knight, but in the meantime I have posted these two images after being inspired by the discussion on p.104. It is useful to consider why Trotsky was removed from the second pic (e.g. by whom and to what end?). This story is very revealing.  Knight's comment that understanding the "context if production" and that "published images are carefully chosen and have been produced under certain constraints of creation [e.g. totalitarian regimes, my example] and the process of selection and editing helps researchers to attribute significance to the images" (104) is bang-on in my opinion and very insightful.