There are a few quick guides from Esri for learning about the data editing environment in ArcGIS 10. First the is “Editing in ArcGIS 10: An Overview” pamphlet available in PDF format. The document quickly outlines the basic steps taken when editing data in ArcGIS 10. Also available online is the “Quick Tour of Editing” section in the ArcGIS Desktop Help 10.0 library. Over on YouTube, EsriTV has an almost six-minute video on Editing in ArcGIS 10 taken from a presentation at last year’s FedUC.