What is this ACEO?
ACEO stands for "Art Cards, Editions and Originals". These 3.5 x 2.5 in cards are usually created by artists as originals or limited prints. Their primary purpose is, of course, to be traded as they're a very affordable way to get a piece of art by an artist you like.
For complete collection of all my ACEOs together with what they were traded for, please look HERE.