A collection of reference books on naive Art, 1970's and later, comprising seven volumes including, beryl cook, the works, published London, 1978, beryl cook, on man show, published London, 1981, world Encyclopedia of naive Art, published Yugoslavia, 1984, Tomasevic Tisnikar, Painter of death, published Italy, Susan Grimm, Authentische naive, published Germany, 1991, naive Art, paintings from Yugoslavia, published 1977, Drago Zdunic, primitive painting, published New York, 1981