It’s Ida’s first day of school. She carries her new lunch box and a long, blue string with her special friend Dotty attached to it. A big, colorfully spotted pal with horns, Dotty just happens to be invisible. On that first day of school, Ida and Dotty find out there are plenty of other imaginary friends in attendance. But as the year passes and fewer and fewer imaginary friends come to class, Ida begins to wonder if Dotty is welcome at school anymore . . . Perceptive and warmly funny, with charming art from exciting illustrator Julia Denos, Dotty is a celebration of the power of friendship and imagination. "Denos’ colorful, stylish, mixed-media illustrations emphasize the sweetness, discovery, and common worries that come with leaving home and entering the wide world of school for the first time. An appealing story that merits repeat visits." —Booklist "Denos's paintings are an unadulterated delight." —Publishers Weekly "A charmer." —Kirkus Reviews "This enjoyable tale of maturing at one’s own pace and on one’s own terms will resonate with children and parents alike." —School Library Journal "This picture book will help young students overcome their nervousness and realize that everyone needs a friend. It would be a wonderful opening day read-aloud." —Library Media Connection