These very basic readers contain simple stories, repetition and rhyme, and colorfully illustrated pages. Big, Big Wall is a retelling of "Humpty Dumpty." Though the mouse and bunny are too small to keep him from cracking, a perky pig comes to the rescue, and the three friends cushion the egg as he tumbles into a flower bed. Dewey and Aruego's art lends whimsical good cheer to this familiar tale with a new twist. The second book is not quite as successful. Jack, a cat, and Sam, a mouse, meet in the first vignette and pronounce their friendship in the second, but the final story wanders into Sam's feelings of being big, little, sad, and, finally, happy on the last page when he and Jack are together. Bowers's illustrations are bold and cheerful. Beginning readers will enjoy their success as they read these stories independently.