A powerful picture book about how one person (or dolphin) can change the world, from the New York Times bestselling author of Before Happiness and The Happiness Advantage

Happiness and kindness can be contagious! Ripple, the new dolphin at the aquarium, is surprised that no one in her new home plays or has any fun at all—all because of a bullying shark named Snark. Ripple teaches her new friends that happiness is a choice, and that we can each make the world a better place because of who we choose to be. They challenge Snark to a staring competition—if they can make Snark smile, everyone gets to play. If not, Snark’s no-fun rules will rule. Will Ripple have the effect she hopes for?

Ripple’s Effect will help children understand and harness the power of positive psychology and rise above conflict peacefully.