Understanding Art for Geeks
HeadMounted found a great little flickr collection of art for geeks where helpful designers have provided you with useful hints to help you better comprehend the confusing art world. Or not. Some of them are very clever.
Unless looking at breasts is ok where you work, that is.
You're missing something, personally, I'm afraid. The picture was a painting on wood that had been damaged by the passage of time, with large patches of paint having completely flaked off. The joke was that the flaked-off patches had all been enclosed in "broken image" frames.