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 A story about choosing happiness and the ripple effect of a positive mindset. Includes seven happiness exercises at the back of the book to encourage kids to fit them in every single day! Ripple the dolphin just moved to a new aquarium and is excited to make some friends! But as she swims around, she notices the water is still and quiet. The eels have no zing. The neon fishes don't glow. The seahorses aren't horsing around. Everyone's too afraid of a mean shark named Snark! Ripple is determined to show her new friends that they shouldn't be afraid-it's all about mindset. They can choose to be happy! But just as the aquarium begins to liven up, Snark the shark shows up ready to prove Ripple wrong. Can Ripple get Snark to smile too? Bestselling authors and happiness experts Shawn Achor and Amy Blankson invite you to dive in and learn how you can spread joy to those around you with Ripple and her friends.