Well, ATCs - Artist Trading Cards - are tiny works of art, measuring 2.5 inches by 3.5 inches. They are the same dimensions as baseball or hockey cards, and fit into the same plastic sleeves in a collector's binder. They can be on paper, card, plastic, foam, and feature collage, paint, ink, fabric, photographs..... everything is acceptable, the only rule is the size. And everyone has a different style and subject.
Each artist lays their cards out on a table. There's about 30 minutes when people meet each other, chat, look at the cards that have been displayed and decide what they would like to have in their collection.
The real fun gets started when the organizer rings the bell, and trading begins! The New York Stock Exchange is a calm and gentle walk in the park compared to artists at an ATC Swap!
Here is a selection of the ATCs that I took to the meet. None left now. I'll have to make more.
And here are some of the cards I came home with..... rather fuzzy picture with some reflections as they are in the plastic sleeves.