Fox’s latest is a participation story filled with a variety of sheep. There are thin sheep and wide sheep, swing sheep and slide sheep, blue sheep and red sheep, sheep that are paired, complementing each other in some way. Only one kind seems to be missing and without a mate as the repetitious question asks, “Where is the green sheep?” Fox, a literacy consultant and reading professor, has once again produced a perfectly simple text with a patterned language and rhythm just right for toddlers experiencing the basics of life and budding readers learning to complete their sentences by looking at words and pictures together. Horacek’s clear, matching watercolor-and-pen cartoon-style drawings flawlessly render each ewe’s role, providing little ones a successful reading experience and ultimately finding the green sheep’s hiding place. Ideally easy and well-designed. (Picture book. 2-5)