Prof Lord Winston, professor at the Imperial College School of Medicine at London University (UK); Prof Howard Gardner, professor at Harvard Graduate School of Education (US); and Prof Barnabas Otaala, emeritus professor at the University of Namibia, to speak at the World Conference on Science and Technology Education to be held from July 8 to 12. Prof Jay Conger, professor of leadership at Claremont McKenna College (US), and Dr Lynton Hayes, executive director of executive education at Harvard Business School (US), to speak at an Australian Institute of Management ‘leading by example’ conference on July 17 and 18. Prime Minister John Howard, to speak at a luncheon hosted by the Australian Chamber of Commerce and Industry and CCI WA, July 25 at the Burswood Entertainment Complex. Alf D’Souza, Moscow-based vice-president of corporate affairs for Shell Exploration & Production Services Russia, to speak at an American Chamber of Commerce business briefing, July 31 at the Parmelia Hilton.