Maybe you've heard the word "pickleball," but you want to know what all the fun is about. Or you're already an enthusiastic fan and want to celebrate the ins, the outs, the dillballs, the chops, and the falafels of it all. Enter Ellis Rosen, resident cartoonist for In Pickleball magazine and frequent contributor to The New Yorker. Rosen is a master of communicating this fantastic sport's primary characteristics with subtlety and wit...