City Dog, Country Frog, by Mo Willems and Jon J. Muth
As you may know from his droll Don’t Let the Pigeon Drive the Bus!, Willems is unfailingly hilarious. But in this heartfelt tale of a canine-amphibian bond, he shows his depth as a writer. Muth’s soft watercolors set the mood for a tearjerker about friendship and change—with a finale that’s far more sweet than bitter.
Best for: 3- to 6-year-olds.
To buy: $18, Hyperion, amazon.com.