He works as Professor of Art History, author, and curator, amongst others at the 48th Biennale in Venice (Italy) and documenta IX in Kassel (Germany).
During this period he forged intensive personal contacts to many contemporary artists of his generation, in particular to James Welling, Matt Mullican, Ernst Caramelle, Jean-Marc Bustamante, Juan Muñoz, Thomas Schütte and Reinhard Mucha.
Since 2001, he has published extensively and curated intensively many exhibitions on the artistic production and the issue of Avantgarde in Greece in the second half of the 20th century.
Since 1977, Zacharopoulos has produced art critiques in: Artforum (New York); Artistes (Paris); Arti (Athens); Parkett (Zurich); Furor (Geneva); Faces (Geneva); Museumjournal (Amsterdam); Art e Dossier (Rome); Artstudio (Paris); Juliett (Trieste); Acrobat Mime Parfait (Bologna); Teuchos and Artime (both Athens).
[4] Numerous catalogues and theoretical publications listed in Zacharopoulos' bibliography,[5] with particular emphasis on the following artists: Gerhard Richter, Mario Merz, Gilberto Zorio, Iannis Kounellis, Per Kirkeby, Eugene Leroy, Michelangelo Pistoletto, Pat Steir, Carl Andre, Pierpaolo Calzolari, Jean-Pierre Bertrand, Marina Abramović, Lothar Baumgarten, Marisa Merz, Jean-Marc Bustamante, Matt Mullican, Thomas Schütte, Jan Vercruysse, Helmut Dorner, Gaylen Gerber, [Harald Klingelhöller, Franz West, Jim Lutes, Tadashi Kawamata, Reinhard Mucha, Adrian Schiess, Herbert Brandl, Jimmy Durham, Michel François, Eran Schaerf, Xavier Noiret-Thomé.