- Vocabulary preview and review pages with pronunciations, glossary, and index
- Diagrams, graphs, or other educational graphics
- Fun, engaging editorial content
- Curriculum connections
- Beautiful, full-color photographs that support and enhance text
- Simple interior design and easy-to-read fonts
- Websites for further research and information
- Back-matter pages that invite readers to think further on the topics
- Clean design for easy readability and comprehension