Bubbie and Rivka's new Friday tradition is to bake a loaf challah, and while each week presents a new challenge, they learn that practice makes progress and persistence makes for some very special together time and delicious bread.

Meet Nail and Hammer, two pals in this STEM-focused story by author-illustrator Sarah Lynne Reul. When Nail gets stuck, Hammer is ready to lend a helping hand. But will Hammer's hard-headedness make things worse?