Sorry for the lack of posts; it's been a busy, jet-lagged week.

Just so you know: Tomorrow, from noon to 4:00, we'll be having a 0 Project event here at the AAC: Speakers' Corner, during which anyone can take the mic and say whatever happens to be on his or her mind. Basically, it's a big free-speech extravaganza. There will be a couple of camera crews, so come say something for posterity.

If the weather's nice--okay, if it isn't punishing--we'll be outside.

Below are some long-promised shots of the Ludwig Forum's collection. The rest will have to wait until next week.

Peter Ludwig: The man behind the collection.

Gerhard Richter's color charts--auto body paint on canvas. The window in Cologne Cathedral was modelled after these.

A wacky Bruce Naumann piece--is there any other kind?--dedicated to John Coltrane. The side facing the floor--and therefore not visible--is mirror-polished.

Is that...Kara Walker???

Nope. Try Henrik Schrat. Who knew that Walker didn't have a patent on silhouettes-as-art?

The piece on the left, however, really is Jenny Holzer.

Jasper the friendly ghost.

Mona Hatoum. A light bulb in the middle of the room slowly ascends and descends, causing the gridded shadows to creep up and down the walls around you.

Can't remember this artist's name...but there was a whole series of knitted clothes here, each for a different bird species.

Not pictured: Jeff Koons's penis.

Oh, it's that guy again.