“Sweet, upbeat, and refreshing.” —Kirkus Reviews From the author of Strictly No Elephants comes an adorable picture book that tells the timeless tale of a little girl who’s on a mission to convince her big sister to play with her! For Lizzie, the perfect afternoon is one spent playing with her big sister, Jane. But it’s tough being the little sister. Jane is always busy with activities and play dates. And so she hatches the perfect plan to show Jane just how much she loves her. Each day of the week Lizzie works hard sketching and planning, waiting until Saturday when she can reveal her grand surprise to Jane: it’s Sister Day, a celebration of imagination and sisterhood. This sweet and whimsical story perfectly captures the special bond between sisters.