The links below lead you to materials presented by Esri staff for sessions at either the annual Developer Summit or User Conference. Materials include PowerPoint slide shows, data, and code. These materials are intended for session attendees. These presentations do not contain audio.
2009 User Conference
Python Scripting - Advanced Techniques
Introduction to Python scripting
Creating an ArcGIS Script Tool from a Python Script - Start to Finish
Building Geoprocessing tools with Python
Performing Network Analysis with Geoprocessing
Fundamentals of GIS Analysis - Overlay and Proximity
Geoprocessing with ArcGIS Server: Tricks and Tips
2009 Developers Summit
Building Geoprocessing Services
Designing and developing geoprocessing tools