Two sided card / announcement / open call published in conjunction with show held March 1 - 26, 1977. The card invites recipients to participate in the show, using the card itself: "Everybody is invited to participate, regardless of profession, sex, age, etc. Just write your definition (of what art is) on the back of this card, put it in an envelope, and send it back to Other Books and So. The show will consist of all the cards received, and a selective catalogue will be published. The original idea for this show is by H.W. Kalkmann." -- text on card.