Short and long "u" vowels are featured in each 16-page book that includes colorful illustrations and engaging text that fosters a natural development of foundational literacy skills. The unique stories in this set help early readers to practice phonics skills and to develop their understanding of fiction concepts. This 6-title set includes Gus in the Tub; Read with Gus; What Luck!; On My Stoop; Luce and Duke; and To the Dunes with Luce.