What is the Network Analyst guide book?

This Guide books section is intended to help ArcGIS Network Analyst users get the most out of the extension. Two books are available:

• ArcGIS Network Analyst tutorial—A good starting point for learning ArcGIS Network Analyst.
• Migrating to ArcGIS Network Analyst—Provides a set of topics to help you migrate your network data from previous ArcGIS versions to the current version.