Book excerpt: ""GIS Tutorial for Homeland Security"" presents a key ingredient to the recovery and improvement of national security with exercises that integrate the best practices of GIS and public safety to safeguard the nation in times of deliberate attacks and natural disasters. This tutorial is the perfect start to building and examining different strategies of defense, presenting tutorials on preparing a Mimimum Essential Datasets (MEDs) database, information sharing and collaboration, a critical infrastructure protection program, citizen protection, search and rescue, and more. The tutorial includes a data CD and a 180-day trial DVD of ArcView GIS 9.3.