On nudity in picture books.

From Letters of Note:

At first the thought of librarians painting diapers or pants on the naked hero of Sendak's book might seem amusing, merely a harmless eccentricity on the part of a prim few. On reconsideration, however, this behavior should be recognized for what it is: an act of censorship by mutilation rather than by obvious suppression.

(via 100 Scope Notes)

Keeping in mind that that was written in 1972... relatedly.