From Rosemary Wells, acclaimed author/illustrator of Yoko, comes a jubilant celebration of the daily achievements of grade schoolers during the first 100 days of school. Emily is ready for her first day of school. There's so much to do: learning the alphabet, singing, reading, and counting. Emily feels like it will take forever to reach 100, when her teacher announces they will have a party after 100 days. As the days and weeks go by, Emily and her new classmates learn new ideas, expand their world, and grow closer together one day at a time.