Closet Hooks Mounting Hooks On An Indoor Door?

Mounting hooks on an indoor door? - closet hooks

I have attached a series of hooks, I would like to mount the door to my closet for hanging coats and other things.

"Most have interior doors will ensure that should try to screw?" Are there standards? "I find my stud finder.

As a matter of preference you think, inside or outside the door is the best? Why?

Thank you!