If you’re new to SQL Server 2014 and work for a Microsoft partner then you might find this SQL Server 2014 Partner Resource Kit useful. Issued in April 2014 it contains links to the SQL 2014 Licensing Datasheet as well as useful related Volume Licensing Briefs on Core Licensing and Licensing Servers in Virtual Environments.

Get it here: http://bit.ly/1oNJwXB.