Into the Unknown: How Great Explorers Found Their Way by Land, Sea, and AirPaperback, 25 March 2014

Lively writing captures the excitement of exploration while providing just enough geographic and historic detail. -- School Library Journal (starred review)

Ready to relive some of the most daring voyages of all time? Unfold these spectacular cross sections and explore fourteen historic journeys, with the help of dramatic storytelling and sidebars that highlight key concepts, places, and technology. Presented in a larger format to make these exciting journeys even more accessible and engaging.
Back matter includes an index, a glossary, and sources.