Based on Abrams' bestselling book 365 Penguins, this charming diptych-style pop-up advent calendar features the house and family from the story. Behind each of the twenty-four die-cut windows readers will find one, two, three, or even more penguins. A miniature book giving door-by-door explanations, all in silly rhyme, is included. This delightful and reusable calendar promises to be a holiday favorite for years to come.