Jan Brett’s charmingly illustrated 32-page storybook “The Mitten” can do wonders for any child – or parent – longing for spring. At his request, Baba knits her grandson Nicki a pair of white mittens. She warns him, though, that they will be hard to find if dropped in the snow. Nicki does lose a mitten, but many creatures benefit from it: a mole, rabbit, hedgehog, owl, badger, fox, mouse, and even a bear find refuge in the warm, snuggly winter fabric. How nine animals manage to squeeze into a little boy's mitten is a delightful marvel for readers.