This book gives an exciting overview of the US Marine Corps, from when it first formed to its missions and members today, as well as their tasks, equipment, and training. Short paragraphs of easy-to-read text are paired with plenty of photos to make reading engaging and accessible. The book also includes a table of contents, fun facts, sidebars, comprehension questions, a glossary, an index, and a list of resources for further reading. Apex books have low reading levels (grades 2-3) but are designed for older students, with interest levels of grades 3-7.