8 books • 7 series
El Hámster Harold (Harold the Hamster) (Aventuras de Mascotas! (Pet Tales!))
Harold the Hamster (Pet Tales!)
Producers, Consumers, and Decomposers (Spotlight on Ecology and Life Science)
Vipers (Snakes on the Hunt)
Anti-Semitism (Spotlight on Immigration and Migration)
A Teacher's Tools (Community Helpers and Their Tools)
The Life of Frederick Douglass (Rosen Common Core Readers)
How Leaves Work (Rosen Common Core Readers)