Peggy Rathmann won numerous awards for "Good Night, Gorilla," which tells a tale of a gorilla that manages to swipe the zookeeper's keys at the end of the night. Throughout the book, the mischievous primate tiptoes behind the zookeeper as he makes his rounds. Once the zookeeper says good night to each of the animals, the little gorilla unlocks their cages and sets them free. The minimal text is ideal for very young toddlers not quite ready to sit through an elaborate story. "Good Night, Gorilla" was first published by G.P. Putnam's Sons, a division of Penguin Young Readers Group in 1994.
Ms. Rathmann won the Caldecott Medal for "Officer Buckle and Gloria." Her other titles include "Ruby the Copycat" and "Ten Minutes Till Bedtime."