(Pictured: Rainbow Series: Apricot Tangerine)
I'm a member and regional co-rep for Studio Art Quilts Associates, an international group of 2500 artists. Here's what they say about the meaning of art quilt:
"SAQA defines an art quilt as a contemporary artwork exploring and expressing aesthetic concerns common to the whole range of visual arts: painting, printmaking, photography, graphic desing, assemblage, and sculpture, which retains, through materials or techniques, a clear relationship to the folk art quilt from which it descends."
Interesting, huh? No mention of 3 layers, or stitching or materials/process at all. hmmm.