World War II was one of the defining events of the 20th century. This informative series helps readers understand the events that caused the war, the many parts of life the conflict affected, the key battles, and the lasting impacts the war had around the world. Each book includes historic photos, two "A Closer Look" special features, as well as a table of contents, infographics, critical thinking questions, a reading comprehension quiz, a glossary, additional resources, and an index. This Focus Readers series is at the Voyager level, aligned to reading levels of grades 5-6 and interest levels of grades 5-9.