First of all, an art card also called ATC (Art Trading Card) or ACEO (Art Card Editions and Originals) meets a guideline of being produced on a 2.5″ x 3.5″ format. The measurement standard was taken from the same standard that trading cards, like baseball cards, use. The size allows the collector to keep cards [...]
ATC or ACEO an Overview That Settles the Debate