Initially developed in Japan by Nintendo as a computer game, Pok mon swept the globe in the late 1990s. Based on a narrative in which a group of children capture, train, and do battle with over a hundred imaginary creatures, Pok mon quickly diversified into an array of popular products including comic books, a TV show, movies, trading cards, stickers, toys, and clothing. Pok mon eventually became the top grossing children's product of all time. Yet...