Did you get your Google Nexus 7 (2013) yet? Mine is still missing in action. Should be arrived by end of month. But that does not stop me from studying the new features of Nexus 7 (2013). Learn Android 4.3 Jelly Bean… New Android users should take time to study it. Experience users can skip it as it is pretty much the same as your existing Android devices except new stuffs in Android 4.3.
Nexus 7 (2013) User Guide
Download Nexus 7 (2013) Guidebook here.