What are the card-playing habits of U.S. citizens? That was what the Association of American Playing Card Manufacturers wanted to know more about. So they hired New York's J. Walter Thompson advertising agency (Lux, Kraft Cheese, Chase & Sanborn) to investigate. Last week J. Walter Thompson Co. put into circulation a little red booklet revealing the results of its door-to-door survey:
> Next to reading, going to the movies and listening to the radio, card games are the most popular form of recreation in the U.S.
> More than four-fifths of U.S. families—83%—play cards....