Book excerpt: "This book highlights more than a hundred maps from every era and every part of the world. Organized chronologically, they display an astonishing variety of cartographic styles and techniques. They range from priceless artistic masterworks like the 1507 Waldseemuller world map, the first to use the name "America, " to such practical artifacts as a Polynesian stick chart, a creation of bent twigs, seashells, and coconut palms that was nevertheless capable of guiding an outrigger canoe safely across thousands of miles of trackless and seemingly endless ocean. Some, like the portolans, or sea charts, of the Age of Discovery, were closely guarded state secrets that shaped the rise and fall of empires; others circulated widely and showed such fabled routes as the Silk Road across western Asia and the Oregon and Santa Fe Trails that opened up the American West."--Jacket.