This book introduces young readers to the US Congress, its role as the legislative branch, the relationship between the House of Representatives and the Senate, and how people take office in both chambers. The book also includes a "Closer Look" special feature, several "Did You Know?" facts, a table of contents, quiz questions, a glossary, additional resources, and an index. This Focus Readers title is at the Pioneer level, aligned to reading levels of grades 1-2 and interest levels of grades 1-3.