Preschool-Grade 1. Stick, a stick, is lonely. Stone, a stone, is too. They meet and become friends. The end! In the hands of debut author Ferry and unstoppable best-selling Lichtenheld, however, this nearly plotless affair becomes a thing of off-the-charts adorability. For starters, just look at them: Stone (described as “a zero” because of his shape) is a brown lump, while Stick (described as “a one”) is a stubby-limbed fella with a tall twig head topped by a leaf. They both have dots for eyes and dashes for mouths, all of which go giddy after they meet. Ferry uses a minimalism that matches the art: “Stick, Stone. / No longer alone. / Stick, Stone. A friendship has grown.” Then: a hurricane! Stick is missing! Then he is saved by Stone! Okay, it’s true, even this dynamic author-illustrator duo run out of things to do, but these two characters are a delight to know (at the end, quite cleverly, they form “a perfect 10”), and the irresistible cadence of the text should make this a repeat favorite.HIGH-DEMAND BACKSTORY: After such hits as Steam Train, Dream Train (2013) and Good Night, Good Night, Construction Site (2011), anything Lichtenheld touches will be gobbled up.