This book traces the history of mapmaking while offering insight into the role of cartography in human civilization and sharing anecdotes about the cultural arenas frequented by map enthusiasts. It comes as no surprise that, as a kid, Jeopardy! legend Ken Jennings slept with a bulky Hammond world atlas by his pillow every night. It recounts his lifelong love affair with geography and explores why maps have always been so fascinating to him and to fellow enthusiasts everywhere. He takes readers on a world tour of geogeeks, from the London Map Fair to the computer programmers at Google Earth. Each chapter delves into a different aspect of map culture: highpointing, geocaching, road atlas rallying, even the "unreal estate" charted on the maps of fiction and fantasy. He also considers the ways in which cartography has shaped our history, suggesting that the impulse to make and read maps is as relevant today as it has ever been.