GIS technology, as applied and advanced by dedicated professionals, is meeting myriad challenges while changing the world. These users share a vision of GIS that is inclusive, interactive, and instantaneous in exciting new ways. Esri Map Book, Volume 26 reflects the versatility of GIS to monitor and manage the environment; enhance the transparency and accountability of government; protect the health and security of communities; improve workflow efficiency for public and private entities; inform and engage citizens; and so much more.