[1] Weissberg graduated from the Free University of Berlin in 1977 with a master's degree in general and comparative literature, German studies, and linguistics.
[6][7] She has also been a Fellow at the Center for Advanced Studies in Munich, the Dubnow Institute in Leipzig,[8] and the IFK Vienna.
She was one of the founding members of the Research Center Sanssouci for the Study of the Enlightenment (RECS), a collaboration between the University of Potsdam and the Public Castles and Gardens Sanssouci,[14] and served on the advisory board of the Moses Mendelssohn Center in Potsdam.
Weissberg has also been a guest speaker on several radio shows, including BBC World Service, CBC Toronto, Deutschlandfunk, Hessischer Rundfunk, Bayerischer Rundfunk, NPR and the MLA radio service.
[19][20] She has extensively dealt with figures like Edgar Allan Poe, Rahel Varnhagen, Hannah Arendt, Dorothea Schlegel, Henriette Herz, Johann Gottfried Herder, Moses Mendelssohn, Walter Benjamin, Sigmund Freud, Friedrich Schiller, Johann Wolfgang von Goethe and Heinrich von Kleist.