When hanging art above a piece of furniture, make sure the piece or grouping of pieces is no longer than the furniture itself. A good rule of thumb is to hang art and groupings that are about three-fourths of the total width of the furniture below.
Do not hang your wall art too high. This is a rookie mistake many people make, usually by falsely assuming that hanging art higher will make the ceiling seem taller. However, art should always hang at eye level.
When hanging groupings of different sized art, you should first create a template. Imagine the grouping as one large rectangular or square piece of art. Hang a newspaper cut out on the wall and decide how you will place the art within that shape. Trace each framed piece within the cut out if it will help you visualize the final product. Create the same sized shape on the wall in washable pencil, and wipe away after the pieces are all hung.
Careful About the Weight
Lastly, select hardware carefully and do not misjudge the weight of your artwork. Often framed pieces of art, especially those with a thick glass front, are too heavy for your average nail. Select hanging systems that can withstand the art. The only thing worse than poorly hung art is a damaged wall and shattered frame.