Szarkowska, Jankowska, Krejtz and Kowalski present an innovative approach towards creating accessible content following the example of a multimedia app created in the Open Art project, carried out by a consortium of partners including museums, universities, a research institute and a media access foundation. The goal of the project is to create a multimedia application guide containing accessible descriptions of selected works of Polish modern and contemporary art from the participating museums, in accordance with the principles of Universal Design. The chapter presents the concept of the app, focusing on the results of user-centred needs analysis and reception studies regarding the features of the optimum description of works of art in museums.