With the twelve-part exposure #1 from 2000, for which she photographed herself running on a rooftop in Manhattan from twelve perspectives simultaneously, Barbara Probst began a long-term photo-artistic project that continues to this day. The latest two-part exposure #189 is an experiment with a completely unstaged situation in public space. In between, she has worked with diverse photographic themes, such as still life, street, nude, fashion, interior and portrait photography. In a constantly changing, accelerating, diversifying multimedial world, in which the call for media competence is becoming ever louder, her pictures and series sharpen the viewer's awareness that there are many perspectives, realities and points of view - in this respect they could hardly be more contemporary and relevant.The three authors of the publication discuss the topicality and impact of the themes addressed by her pictures. The book is published to accompany a major retrospective (Lucerne, Hanover, Cincinnati) and contains, for the first time, a catalog raisonné of all 189 exposures produced to date, as well as an overview of the works of recent years and installation views of her most important past exhibitions.