Title: Los Gatos vs. Los Perros (Cats vs. Dogs) (National Geographic Readers Series), Author: Elizabeth  Carney
Title: Los Pinguinos (Penguins) (National Geographic Readers Series), Author: Anne Schreiber
Title: Grandes Migraciones: Las Ballenas (Great Migrations: Whales), Author: Laura Marsh
Title: Los Tiburones (Sharks) (National Geographic Readers Series), Author: Anne Schreiber
Title: Las Tormentas (Storms) (National Geographic Readers Series: Level 1), Author: Miriam Busch Goin
Title: Los Delfines (Dolphins) (National Geographic Readers Series: Level 2), Author: Melissa Stewart
Title: El Tiempo (National Geographic Readers Series: Level 1), Author: Kristin Baird Rattini
Title: Rocas y minerales (National Geographic Readers Series: Level 2), Author: Kathleen Weidner Zoehfeld