This document provides an overview and introduction to ArcGIS Desktop. It summarizes the key components of ArcGIS Desktop including ArcMap for visualization and analysis, ArcCatalog for data management, and a variety of extensions for specific analysis types. It also discusses working with different data formats, editing data, geoprocessing tools and workflows, and options for sharing maps, layers and other resources. The document aims to give attendees an understanding of the capabilities and components of ArcGIS Desktop.