• Textbook:  Chapter 9 (pgs. 347-389, skip sections “Raster Buffers” and “Raster Overlay”) 
• ESRI ArcGIS 10 online help files (http://desktop.arcgis.com/en/desktop/latest/main/analyze/what-is-geoprocessing.htm)

              - Introduction (all subsections)
              - Commonly Used Tools (all subsections)