Now offered in Spanish, the Guess What series provides young curious readers with striking visual clues and simply written hints. Using the photos and text, readers rely on visual literacy… More →

This series looks at animals that have spread beyond their native habitats and taken over new territory. Animal Invaders provides a global perspective on the topic by including invasive… More →

These Level 1 guided readers illustrate examples of both gradable and complementary opposites found in the animal kingdom. Students will develop word recognition and reading skills while… More →

Early guided readers in the 21st Century Basic Skills Library support the development of reading skills as they introduce students to vocabulary and content that they will use for a lifetime. More →

This level 3 guided reader series allows readers to get a close look at some of the most amazing baby animals in the world. Books include intriguing facts and adorable photos. Readers will… More →

Baby animals always draw big crowds at the zoo. The fascinating facts and adorable photos in these books give students a close look at some of the most amazing animals in the world. They will More →

The Better Together series presents an introductory look at some of nature's most exciting cooperative pairs. Each book explores the close mutualistic relationship between the two creatures… More →

Plants might look harmless, but they can be killers. This narrative nonfiction series features some of the most amazing--and deadly--plants on the planet, from carnivorous plants to burning… More →