CROZON, Alain . Who's There? ISBN 9781452140148 . ea vol: illus. by Alain Crozon. 12p. Chronicle . 2015. Board $10.99. PreS A bold Technicolor palette, clever alliteration, fun rhyme, and innovative flaps make these entertaining choices for dextrous preschoolers. In All Shook Up! , children get the chance to practice their directions: up, down, right, left, back, and front. Showcased throughout are rambunctious animals flapping, fluttering, kicking, and swinging. This work is a perfect inspiration for wiggles and giggles. Young readers are invited to explore different iterations of the titular question in Who's There? Opening with onomatopoeic exclamations, each page features a mystery to be solved by curious little hands. Kids will be pleasantly surprised by what they find after lifting several flaps to discover what's hidden underneath.