Monday President Costis Stephanopoulos to host reception for EU ambassadors, celebrating EU enlargement. Prime Minister Costas Karamanlis to inaugurate the 27th Book Fair at Pedion tou Areos Park. Public Order Minister Giorgos Voulgarakis visits Washington for meetings on Olympic security. Athens Mayor Dora Bakoyiannis visiting Paris to promote the Olympics. To Wednesday. Deputy Defense Minister Vassilis Michaloliakos visits Washington for talks on defense issues. To Thursday. Richard A. Katula, professor of communication and education at Northeastern University in Boston, presents a lecture on «Presidential Campaign 2004: Reflections on the Future.» It is organized by the Fulbright Foundation and will be held at Athens University at 4.30 p.m. Tel. 210.724.1811, or visit www.fulbright.gr. Tuesday President Stephanopoulos to inaugurate the exhibition «Cyprus: A Thousand Fragments of History. The Thanos Zintilis Collection,» organized by the Goulandris Foundation at the Museum of Cycladic Art. Deputy Education Minister Giorgos Kalos to meet with substitute teachers to resume talks over their demands for permanent employment. Total eclipse of the moon. In Greece it will start at 10.50 p.m., with the total eclipse at 11.30 p.m., and end at 2.09 a.m. on Wednesday. Wednesday La Verne University holds a two-day seminar on «Mind and Image.» To Thursday. Tel. 210.822.3055. Thursday Turkish Prime Minister Recep Tayyip Erdogan begins a three-day official visit to Greece. To Saturday. US Ambassador Thomas Miller to speak at news conference at the American-Hellenic Arts Center of Halandri Association, introducing the new cultural and athletic center, called Halandri Arts Center. At 53 Garittou St, Halandri, at 1.30 p.m. Tel. 210.639.3341. Saturday Federation of Secondary School Teachers (OLME) stages a national demonstration demanding permanency for contract substitute teachers. Sunday Communist Party peace movement (EEDYE) holds march from Marathon to central Athens, starting at 8 a.m. in Marathon and ending with a concert at the Old University on Panepistimiou St at 7.30 p.m.