Issue no. 91 of the art theory journal, Enigma has been recently published. Deodáth Zuh, our colleague figures there as guest editor of Arnold Hauser's early works and makes an attempt to cast new light on the genesis of Hauser's sociologically informed theory of art by tracing them back to his Budapest, resp. Vienna period. Present issue contains a series of pre-war Hungarian articles, and an originally German essay on the process of gathering samples for an interpretive sociology of film. Some freshly processed documents, and a lengthy editorial introduction completes this collection of texts. Issue No. 91 of Enigma is a joint product of Research Group for Art Historiography of RCH HAS, and MTA Lendület Morals and Science Research Group. It was dedicated to the loving memory of Árpád Tímár.