How to paint over a piece of furniture

what is the furniture made of????

If there is already a finish on it, a light sanding to provide some tooth to the surface will help whatever you choose to paint it stick a bit better. Sand and wipe down with a clean cloth. Then you should be able to paint away to your heart's content. I usually lightly sand in-between coats, but check the directions on your paint.

I agree with Roxaneg , sand lightly and wipe down. If the piece is very dark and you want to paint it very light or white, you might have to do a primer coat or an extra paint layer.

A light sanding should be all the prep it needs. You may want to prime it before painting, but if it's in great condition prep is really simple

Do it over with fine sandpaper first to rough up the surface and clean off any grease and old sealing paint. Dust off. Then paint.

Give a light sanding and then clean and paint

sand prep paint seal

What color is the piece now and what color do you want to paint it. Lightly sand and clean. Use primer you can add the color in your primer then paint. Enjoy