Massive and mysterious pyramids have fascinated people for thousands of years. GREAT! Pyramids explores these amazing structures and the ancient cultures that built them.The Spectrum(R) Readers are the perfect Common Core aligned tool to support the development of nonfiction reading skills. Each leveled reader features high-interest informational content, exciting full-color photo images, and Common Core aligned comprehension practice focused on the development of critical thinking skills. Leveled to the respected Fountas and Pinnell and Lexile systems, these 32-page books are perfect for young readers who are ready to explore leisure reading on their own. This multilevel series is the perfect addition to any school or home library.