Turn on/off Ribbon in AutoCAD 2015

How to turn on/off Ribbon feature in AutoCAD 2015?

To understand about interface of ribbon, you can find in this tutorial. The instruction how to turn on/off ribbon below can be applied to all AutoCAD version until now.

How to turn on ribbon in AutoCAD?

To turn on Ribbon, you should use RIBBON Command. At command bar, type command: RIBBON -> press Enter.
Ribbon area will be turned on automatically with just 1 command above. The interface of ribbon is convenient but it takes a part of working screen.
With newbies who newly use AutoCAD or newly get familiar to it, you should allow ribbon area to be displayed in order to use whenever you want; however, by using autocad for a long time and you get used to the new interface, you can turn off the ribbon to widen the working place on AutoCAD.

Resource: http://autocadtutorialfree.com