Are there PGP Desktop Encryption guides?
This article lists Symantec Encryption/PGP documentation for Windows and MacOS.
Symantec's documentation on Symantec Encryption Desktop (formerly known as PGP Desktop) is quite good. If you have any questions, take a look at these. In particular, if you want to know how Symantec Encryption Desktop and Symantec Drive Encryption (formerly known as PGP Whole Disk Encryption) work, take a look at the User's Guides below. The ACCC runs a Symantec Encryption Management Server (formerly known as PGP Universal Server) to manage Symantec Encryption Desktop on campus; you'll need to know that while you read their manuals. Also note that the UIC license for Symantec Encryption Desktop is only for the Symantec Drive Encryption parts.