The authors fascinatingly and in sufficient detail survey the disputes about the essence of art of all times and peoples - from the paintings of the Paleolithic caves to postmodernism. The statements of artists, philosophers and art historians that supplement the text allow us to judge how ideas about art have developed over the past three millennia. As a result, the complex theoretical problems of art history are simpler than we think. The publication was released as part of a joint project between Masters and Ad Marginem.