First-grader Jessica, a big worrier, is especially afraid that she will make a mistake when she is reading in front of her class and parents on Reading Theater Day, but after lots of practice reading to her dog Wiggles, she performs perfectly.

A child starts to get carried away with worry and rushing thoughts before taking a breath, steadying, observing thoughts, feeling kindness, feeling thankful, and experiencing the world.

Bored because there is nothing to do in the house to which his family has just moved and worried about starting third grade in a new school, Stuart makes a magical cape out of his uncle's ties and has a series of adventures.

It's a beautiful day and Worrysaurus has planned a special picnic. But it isn't long before a small butterfly of worry starts fluttering in his tummy . . . What if he hasn't brought enough to eat? What if he gets lost in the jungle? What if it rains?! With a little help from his mom, Worrysaurus finds a way to soothe the anxious butterflies, chase his fears away, and find peace and happiness in the moment at hand.

Melvin the cement mixer worries when he cannot figure out who gave him a valentine.

Tiger unwittingly helps some worms overcome their fear of tigers with a well-placed, informative book, but will a wormy hug aid a fearful Tiger?

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.

"Pig is so incredibly kind and fabulously fun, but he also has a big secret--he's a tremendous worrier! 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?"--

When Emma's grandmother, who takes care of her after school and takes her out for bagels on Wednesdays, gets sick and has to go to the hospital, Emma is afraid that she will die--but she is also afraid to talk about her fear.