From the bestselling creators of In My Heart, a new book about all the things a smile can do One girl discusses the power of a smile and the many different smiles she gives to those around her throughout the day. There are soft, sleepy smiles that greet a new day; goofy smiles with her best friend; and even playful, supportive smiles, which help her sister when she’s feeling down. With charming text and bright illustrations, this story shows the power and gift of a smile. The Growing Hearts series celebrates the milestones of a toddler’s emotional development, from overcoming fears and expressing feelings to welcoming new siblings.