"When Pig gets the brilliant idea to throw a party for Mouse and their friends, he can't help but think of everything that could possibly go wrong. After all, what if a lion eats all the invitations? What if nobody comes? Or worse, what if everyone comes and has an awful time?"--Publisher.

A young girl's sense of adventure and exploration vanishes when she discovers a Worry that grows and grows until she learns how to get rid of it.

Jessica, who worries about everything from her spelling homework to remembering to fill her dog's water dish, learns that fire safety begins with extinguishing her fears.

As brother-and-sister dogs Digger and Daisy head out to the woods to camp, Digger worries about bears.

To help with his anxiety, Billy uses the worry dolls his grandmother recommends, but he finds that they do not quite solve his problem.

When Wombat, Weasel, and Woodchuck decide to wander the world, they wonder what worries they will encounter.

Raccoon is nervous about all of the things that could spoil a picnic, from bees to dragons, until Duck convinces him that surprises can be fun.

"Poor Donut is feeling anxious. School is about to start again, and Donut can't stop all sorts of worries from filling her round donut head. She's tired of her friends and family saying, 'Don't worry!' As if it's that easy! Can her new friend, Cookie, help her find ways to manage her anxiety?" --

Twitchly Fidget the lemur worries about almost everything until his Aunt Bridget Fidget pays him a visit and shows him another way to live.

On the first day of third grade, Gus worries that his teacher will be a monster, his classmates will call him names, and it will be the worst day of his life, but when it is over he discovers that most of his fears were unfounded.