This book explores the 9/11 terrorist attacks, providing an engaging overview of how these attacks unfolded and the legacy they left behind. Short paragraphs provide easy-to-read text, while vivid photographs make each book engaging and accessible. The book also includes informative sidebars, two "Story Spotlight" special features, a timeline, comprehension questions, a glossary, an index, and a list of resources for further reading. This book is part of the Apex Honors imprint, which has a reading level of grades 3-4. However, the imprint is specifically designed for older readers, with interest levels of grades 3-9.