This is a quick post. But may be immensely helpful for many of you.
In my last browsing session I stumbled upon the official Nexus 7 Guidebook by Google.
This guide covers all the available versions (16/32 + WiFi/3G) equipped with the Jelly Bean 4.2 update.
A good starting point for any Nexus 7 user. You can download the file following the link below.
Have a nice reading!