You don't have to go out and spend a thousand dollars on fancy display panels for your work to show well (although it doesn’t hurt). It does, however, help to get your work on eye level. It also helps if your display is designed to attract attention. For me, this means bringing 2 or 3 large, colorful framed originals. These don’t sell very often, but they are key items in my display. I also bring a few framed originals priced at $100 and under, which sell more often, although if it were not for prints, I would not have a viable business.
If you sell prints, make sure that they are clearly labeled as such otherwise you will confuse your customers. You might even want to separate your originals from your prints for the same reason. Most of the bigger art shows require it. Put them in a print rack or browse bin clearly labeled “Prints”, people like to flip through those. I usually include one framed print in my display so people can visualize what they will look like framed and see the quality up next to my originals.
It's nice to make your space feel warm and homey, especially if you are selling decor pieces. Rugs, flowers or other decorations are nice touches. However, be careful of busy backgrounds that might keep your customers from focusing on your art. A neutral backdrop with little or no pattern is best. I subscribe to the minimalist school, so my booth is void of extraneous items.
Some people swear that a dark colored backdrop (black or dark grey) is the only way to go because it makes the artwork “pop”. I think it depends on what type of art you have. Black and white photography definitely calls for a dark background. I prefer a light background, the color of a sandy beach to go with my ocean-themed art. Also, make sure your work is well lit, especially if you have bright colors. If you are displaying in a tent, you want a white canopy. Colored covers will change and dull the colors in your paintings/photos.
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