i'm taking a printmaking class this semester. we're starting a new print, lithography. printing off a slab of stone. the teacher showed us how to sand it smooth, and how to put the various mediums on the stone and how they will look when they print. he said that when you put the mediums down on the stone, you are impregnating the stone. o.O weird. but i did choose a stone, the largest i could find. i'm guesstimating that it's 22x30 inches at least. i then spent over an hour courting my stone, sanding it as smooth as possible. i thought about going all the way and start drawing, but my stone and i decided we didn't want to go all the way on our first date.