JFM Artwork Instead of painting miniature works of art the way my friend Jan (JFM) does; I'm going to try to make miniatures of some of my photos. Here's her blog link http://fromautumntowitches.blogspot.com/ I don't think I have her artistic painting abilities but photos may work for me. It's all just for fun! Artist Trading Cards (or ATCs) are miniature works of art about the same size as modern baseball cards, or 2 ½ X 3 ½ inches (63 mm X 89 mm), small enough to fit inside standard card-collector pockets, sleeves or sheets. ... http://en.wikipedia.org/wiki/ACEO Wallet sized prints are about the same size.