Google has been putting out some educational videos about how to get more out of Google Analytics, and not just those from the recently launched Analytics Academy offering.
This one is about a half hour long, and features Google engineer Andrew Wales discussing how to get more out of attribution and campaign measurement on Android using Mobile App Analytics.
It runs through: campaigns and universal analytics, Google Play campaign measurement (how it works, implementation, testing and common issues) and general campaign measurement.
Google has been making quite a few changes to Analytics. Get a look at some of the new stuff here.