I've got a small paper-back on just that subject.
Oh, wow, for, ahem, "copyright reasons" this edition of Martin Gardners, Mathematical Puzzle's and Diversions, is not for sale in the US or Canada.
That is the fine print on the back cover.
Now that's not right.
Damn it, he's an American. Born in Tulsa in 1914. Got his BA at Chicago.
Hm, maybe he upset McCarther.
Maybe the "good" Senator thought Mr. Martin subversive?
Too clever with numbers to be a good American?
Nah.
Probably some
corporate thing to do with Penguin Books.
Corporate, it should be a cuss word.