Readers will travel around the world and throughout history as they learn about communication, cultural diversity, and geography. Geography topics range from city planning themes such as resource distribution, settlement patterns, and city infrastructure, to landforms and map skills. Raintree Fusion is high-interest nonfiction aligned with curriculum, at a reading level accessible to struggling readers. It uses engaging photographs and illustrations. Background knowledge of subject matter is also incorporated into the text. All vocabulary is defined at point of use. Each title has a clean, clear design that supports readability along with clear, predictable text structures.