Rosenthal, Eileen. I Must Have Bobo! Illustrated by Marc Rosenthal. Content G-PICTURE BOOK. Atheneum Books for Young Readers. 2011, $14.99. Willy woke up to trouble. He couldn’t find Bobo until he found Earl, the cat. It seems as if Earl has assumed ownership of Bobo the sock monkey and Willy is in for one long day of hide and seek if he wants to keep his Bobo. I liked the playful nature of the book and could see a cat and child fighting over a stuffed animal. ADVISABLE Pre-K, Shauna, Reading teacher.