Step into the world of biomes and discover the many differences between different climates! This 6-book collection combines stories from Fiction Readers and informational text found in TIME FOR KIDS(R) Nonfiction Readers to introduce students to multiple text types as called for in the Common Core and other state standards. Both the fiction and nonfiction books contain high-interest text, vibrant illustrations and images, age-appropriate text features, and increasingly complex vocabulary. The titles in this collection include: The Lonely Penguin's Blog; The Happy Faces Leave Home; In a Whirl; Step into the Forest; Step into the Desert; and Step into the Rainforest.