Artist’s book and a significant samizdat publication by Czechoslovakian artist Milan Knížák on happenings and performances. He was the co-founder of the group AKTUAL and a member of Fluxus.

Soon after Knížák created this publication, the Czechoslovakian police searched his home pretexting that he was creating and distributing pornographic material. Soon after, he was imprisoned in a jail in Prague, but after public pressure, got released.