Office—Akademiegebaude am Gendarmenmarkt, Jagerstrasse 22/23, 10117 Berlin, Germany.
Art historian and Egyptologist. Berlin-Brandenburg Academy of Sciences and Humanities, Berlin, Germany, Egyptologist.
The Representations of Statuary in Private Tombs of the Old Kingdom, O. Harrassowitz (Wiesbaden, Germany), 1984.
(With Erhart Graefe) The Small Golden Shrine from the Tomb of Tutankhamun, Griffith Institute (Oxford, England), 1985.
(With Erhart Graefe) Studien zur agyptischen Kunstgeschichte (title means "Studies in Egyptian Art History"), Gerstenberg (Hildesheim, Germany), 1990.
The Sarcophagus in the Tomb of Tutankhamun, Griffith Institute (Oxford, England), 1993.
(Translator) Abdel Ghaffar Shedid and Matthias Seidel, The Tomb of Nakht: The Art and History of an Eighteenth Dynasty Official's Tomb at Western Thebes, Philipp von Zabern (Mainz, Germany), 1996.
(With Gawdat Gabra) The Illustrated Guide to the Coptic Museum and Churches of Old Cairo, American University of Cairo Press (Cairo, Egypt), 2007.