The thrill of new frontiers enlivens National Geographic’s decorative and instructional “World Explorer Map.” An up-to-date political map, it denotes nations with rich, distinct colors, and etched mountains in shaded relief. It is also detailed with inset charts that list the world’s largest cities by population, and its largest countries by both land mass and population. The map is designed using the Winkel Tripel projection technique, which allows the surface of a sphere to be accurately rendered on a flat surface.