The ESRI Map Book has become an annual must-have collectors item for ESRI International User Conference attendees. The twenty-third volume of the ESRI Map Book showcases the innovative and inspiring accomplishments of GIS users around the world. The true excitement of this book lies in the discovery of which maps have made it from the 2007 ESRI International User Conference Map Gallery into publication. More than 100 full-color maps are featured from distinct industry categories such as cartography, environmental management, government, natural resources, planning and engineering, tourism, transportation, and utilities. Each map is presented with an insightful description of how it was produced or used.