The Marvel titles in Disney's WORLD OF READING line of early readers are designed to offer emergent readers, specifically boys, books that they will want to read by featuring characters they love. The Marvel titles in the series are broken into three levels that invoke the rigorous training courses their favorite Marvel heroes must engage in to perfect their super powers. In reading this series, boys will prefect their own power to read. This is Wolverine introduces readers ages 4-6 to the world of Marvel's most popular X-Man, Wolverine!