The clouds drift across the bright blue sky-all except one. Little Cloud trails behind. He is busy changing shapes to become a fluffy sheep, a zooming airplane, and even a clown with a funny hat. Eric Carle's trademark collages will make every reader want to run outside and discover their very own little cloud.

故事的主角是一朵调皮可爱的小云朵，它喜欢变化成各种各样的形状，一会变成小羊，一会变成小白兔，一会又变成了飞机，只要是它看到过的东西，它都能变出来。最后，它回到了同伴们的身边，和大家抱在一起，然后，滴滴答答开始下雨。