Last really great exh. I saw was in November at the Walker Art Center in Minneapolis - three levels (I hesitate to call them floors) dedicated to the work of Yves Klein. I've always liked Klein a lot - the Restany book from, I think, the late '60s, is fabulous - but one usually gets to see only one or two Kleins in a gallery. This was a broad, detailed overview, absolutely stunning and well-hung. An odd character, for sure, but definitely not a charlatan and the colors/forms are absolutely mind-melting.