The real Yutyrannus (say it yoo-tie-RAN-us) lived in the Early Cretaceous — a one-and-a-half-tonne tyrannosaur covered in downy feathers — the largest feathered animal known. Painted in the Storybook style: soft gouache and colored pencil over an anatomically careful drawing — gentle enough for a nursery, accurate enough for a classroom. Thick matte vinyl that peels clean and re-sticks once or twice before committing — made for bottles, laptops and journals.