The following are the default locations for documentation that is provided when Business Analyst 2012 and 2013 data are installed.
• For Business Analyst 2012 data:
C:\ArcGIS\Business Analyst\US_2012\Documentation
• For Business Analyst 2013 data:
C:\ArcGIS\Business Analyst\US_2013\Documentation
In these folders are several PDFs and Excel spreadsheets that discuss the Business Analyst data in more detail; also included is documentation for business listings.