Guided by Time Magazine's list of 100 most influential people, this series of 64-page biographies focuses on the leaders, scientists, and icons who shaped our world. These people, many from very humble beginnings, changed how the world works. Each biography includes a glossary, timeline, and illustrations. An individual guide for each title provides reproducible activities to extend the text. President Franklin Delano Roosevelt forever changed the way people in the United States think about government and its leaders. He, along with his first lady Eleanor, led America with courage and vision through terrible times. Together they influenced the lives of every American, and their influence is still evident today. See how this unique man overcame difficult obstacles to become one of America's greatest leaders.