Ben and Ellie have a new teacher. But wait a minute.The new teacher is a dog named Riff! With Riff in charge, school is topsy-turvy, and reading, writing and arithmetic are abandoned in favour of lessons in barking, scratching, and digging holes. 'Rich blocks of color and simple illustrations bring this quirky story to life. This, along with the oddball concept and the many funny moments, will hook young readers.' - The Oklahoman