Felix Nussbaum (1904–44) was a German Jewish painter, killed in Auschwitz by the Nazis. After more than four decades in obscurity, this distinguished artist was brought to light with the opening of Felix-Nussbaum-Haus, a museum dedicated to his oeuvre in his native city of Osnabrück in northern Germany. Nussbaum life, work, and fate are reflected in an expressive structure designed by noted American architect Daniel Libeskind. In December 2018, German artist Brigitte Waldach produced for Felix-Nussbaum-Haus an impressive work, Existenz, consisting of three-dimensional drawings that involve viewers in a dialogue with Nussbaum’s paintings, incorporating excerpts from Nussbaum’s letters, and a sound collage. Illustrated throughout, Existenz: Brigitte Waldach—Felix-Nussbaum-Haus documents the environment Waldach has created within Libeskind’s architecture to encourage viewers to experience and reflect on Nussbaum’s art from our contemporary perspective.