As a member of Raz-Plus , you gain access to thousands of leveled books, assessments, and other resources in printable, projectable, digital, and mobile formats. Ensure success in your classroom and beyond with engaging, developmentally appropriate leveled books at 29 reading levels to increase comprehension and fluency. Easily assign books using the Assign button on the book's thumbnail or landing page. Our English leveled books have been carefully written in accordance with standardized Learning A-Z Text Leveling System and quality checked with custom software. Leveled books are available in a wide variety of fiction and nonfiction genres and strengthen connections in literacy and content-area instruction.