DK Children's Discovery Encyclopedia - Polar Journey

"Polar Journey - Documentary of Human Polar Exploration" is one of the DK Children's Encyclopedia of Exploration. How did explorers accomplish polar travel? What dangers are hidden in the polar regions that are unimaginable to ordinary people? What arduous efforts did the explorers make, and what thrilling moments did they encounter? What untold stories are there in the process of human exploration of the poles? This book will take you to understand the stories of explorers exploring the North and South Poles, and to understand the characters, events and technological knowledge.