From the publishers of The World Almanac here is the most authoritative series for young readers on the explorers who have changed our world. These clearly written and exhaustively researched accounts of the lives and impact of some of the world's greatest explorers address a variety of questions and issues surrounding these adventurers. Enriched with primary source documents to make history come alive for today's students and lavishly illustrated with paintings, prints, and artifacts from each explorer's own times, each volume is written to capture the drama of the great journeys of exploration. Maps and time lines enhance the learning experience, and "Did You Know?" fac t boxes highlight fascinating and fun information that students will enjoy reading.