For information on new features in Enterprise Manager 13c Release 2, see New Features In Oracle Enterprise Manager Cloud Control 13c in the Enterprise Manager Cloud Control Introduction.
For more information, see the following books in the Enterprise Manager Cloud Control documentation library:
Oracle Enterprise Manager Cloud Control Basic Installation Guide
Oracle Enterprise Manager Cloud Control Advanced Installation and Configuration Guide
For the latest releases of these and other Oracle documentation, check the Oracle Technology Network at the following URL:
http://www.oracle.com/technetwork/indexes/documentation/index.html
Enterprise Manager also provides extensive online Help. Click Help at the top-right corner of any Cloud Control page to display the online help window.