ATCs are all the rage Making artist trading cards (ATCs) is a hugely popular activity for artists. Originally a paper/collage-based art form, ATCs have caught on with crafters working in a range of mediums and are now just as popular among fabric and mixed-media artists. ATCs are mini art works, the size of a playing card, often created as limited editions. The back of each card contains the artist's name and contact information. The idea behind the...