Use a 35mm camera with manual operation, if possible. The background should be solid white or black depending on the art. When photographing indoors, use photoflood bulbs for lighting because a flash will often produce glare or hot spots. Outdoor photography usually produces even lighting. Be sure to prevent shadows from falling on two-dimensional work.
Shadows are sometimes desirable for three-dimensional work if they help define edges or textures.
Fill the frame in the viewfinder with the image of your work so that it is centered and parallel with the frame lines. If you still need to edit the image you can mask parts of the slide with a special tape that is sold in camera stores. Only submit focused and clear slides. Label the slides with your name, date, title, and dimensions of the work. Include a separate typed slide description sheet.