Generally speaking I assume any question even vaguely relating to The Beatles has been definitively answered somewhere, but I couldn't find an answer to this one: was the famous cover of the "White Album" influenced by the cover of Benjamin Britten's "War Requiem?"
Just to recap the story behind that cover: Britten recorded his pacifist "War Requiem" (sort of a "make love, not war" piece before that became fashionable) for Decca/London in 1963, a year after its premiere. After the recording was made, Britten's producer, John Culshaw, wasn't satisfied with any of the potential covers that the art department came up with. Finally it was decided to use a very simple cover based on the cover of the published score: just the composer's name and the title of the work in white letters against a black background. Culshaw argued that the stark black cover would actually stand out more among the other records in store windows. (The original cover did not have the record company logo as prominently displayed as this CD reissue, which kind of spoils the effect.)
The "War Requiem" recording was a gigantic best-seller, probably the biggest-selling recording ever made of a new work of "classical" music. The Beatles had probably heard the album as had the people they worked with. And the idea behind the White Album always seemed a bit similar to me -- it uses a white background instead of black, but the principle is the same: no cover art to speak of, just the background and the name (not even a title in this case). And again, back when covers were more important than they became in the CD age, to say nothing of the download era, the idea may have actually worked better than another elaborate cover would have: everybody was doing elaborate cover art by that point, so a plain white cover in the middle of a display actually stood out.