The “PO Box” project consists in sending anonymous messages to other people. In the form of the Cuckoo, it is a “Brno for Ostrava” event. The basic idea is to send someone you don’t know something that is a certain personal salutation to them, a gift, something mysterious, rapture in the boredom of everyday life, something that strokes, something whose anonymity of the intimate disturbs and, at the same time, leaves an imprint on the life of a particular person. Anonymous messages are wordless letters, small things sealed in an envelope, stuff that’s a little odd, unexpected, found, recycled, subjective, not entirely legible and imaginative. They will be posted from Brno to Ostrava letter boxes randomly selected from the telephone directory.