Atomic is leveled, high-interest nonfiction that will motivate reluctant and less able readers with text that is related sirectly and simply to the images. Each book is designed as a fun and exciting page-turner so that readers are encouraged to keep reading and gain fluency. Facts, statistics, and processes are presented through graphic organizers to help build curriculum and comprehension skills. There are four reading levels to choose from, with four types of writing demonstrated at each level: discussion, report, explanation, and recount.