Touch you Launcher Icon, if you’re using “Gmail” then touch that icon, at the bottom of your phone touch the Menu icon (the one that is on the far left of the phone looks like 4 boxes.) Then go to settings, and uncheck the email notifications.
That was a good question. If you have a computer you can download the manual to your computer. It's about 68 pages but if you download it, you can search what your looking for.