Thursday Kotzia and Syntagma squares and the National Gardens take on the colors of spring as the City of Athens hosts a series of flower shows, flower arrangement displays and presentations on botany and history, among other events. To May 22. Transport Minister Michalis Liapis to meet with the board of Civil Aviation Unions (OSPA), the Pilots’ Union (EXPA) and the Union of Flight Stewards (EISF). Deputy Foreign Minister of Turkey Ali Tuygan is due to visit Athens until Saturday. International Monetary Fund (IMF) experts visit Athens to offer technical assistance in the management of public expenses. They will meet with Finance Minister Giorgos Alogoskoufis and his deputy, Petros Doukas. Prime Minister Costas Karamanlis to visit Public Order Ministry. Greek and Albanian police representatives to meet in Ioannina to discuss bilateral security issues. Synaspismos Left Coalition Party president Alekos Alavanos to meet with Parliament Speaker Anna Psarouda-Benaki. Alpha Bank shareholders hold a general meeting at 10 a.m. at the Athens Hilton. Athens Information Technology (AIT) in cooperation with Intracom telecommunications hosts a conference on «Information Security,» to be held at 1.30 p.m. at the AIT facilities in Paeania. Tel. 210.668.2700 or log on to www.ait.gr. General Confederation of Greek Labor (GSEE) holds a press conference on «National Strike of May 11» at noon at the GSEE amphitheater. Laura Kennedy, deputy assistant US secretary of state for European and Eurasian affairs, visits Cyprus. She is to meet with Cypriot President Tassos Papadopoulos and newly elected Turkish-Cypriot leader Mehmet Ali Talat. Friday The Federation of Thessaly Industrialists hosts a conference on local business penetration in foreign markets, at the Larissa Imperial Hotel at 7.30 p.m. Deputy Foreign Minister Evripidis Stylianidis will speak. Sunday The Fourth International Yachting Symposium opens at the marina of the island of Poros. To May 12. Tel. 210.452.6335.