I was going through a pile of stuff from my distant past, and I came across an errata slip I seem to have acquired in the late ’70s. There’s no indication of the book it came from, and most of the half-dozen items are perfectly normal typos (p. 129, line 1, read “Gongbo” for “Gangbo”). But the first and last items are:
p. 57, line 14, read “pornographic” for “pomographic”;
Back cover, line 3, read “literature” for “illiterature”.
That’s what’s wrong these days: too much pomographic illiterature!