Categories News The big business behind the adult coloring book craze Post author By crystalg Post date March 10, 2016 Read more at… Business News, Financial News, Business Headlines & Analysis – The Washington Post Tags Adult, Behind, Book, business, coloring, craze ← Shooting Near Pittsburgh Kills 5 and Wounds 3 at Party → Clinton Surrogate: “The Two Most Partisan Senators” Are Ted Cruz And Bernie Sanders, “They Are The Problem”