I really enjoy looking at paintings hung in local galleries and museums and it struck me that the vast majority of them have no glass or any kind of protection in front of the surface. It seems like common practice whether in the formal museum of art or at an art fair. Photos, however, are nearly always protected. I've always had a gut reaction against putting glass in a photo frame, but I've always gone with it because that's "the norm." Are any of you out there showing in exhibits or selling work that has no layer of protection in its final format? Is there a compelling reason photos and paintings are treated differently in this regard? Thanks!