Art Cards, Editions and Originals (ACEOs) and Artist Trading Cards (ATCs) are two branches of a fine-art genre in which miniature paintings, watercolors, photographs, drawings, and prints are produced on 2.5-x-3.5-inch pieces of paper or blank cards. Although the genre is related to the time-immemorial practice of sports fans getting together to trade their baseball, football, basketball, and hockey cards with each other, ATCs were...Continue Reading