Dr Martin Seligam, director of the University of Pennsylvania Positive Psychology Centre and author of Authentic Happiness, to speak at a half day seminar titled ‘Building positive work cultures’, organised by the Australian Institute of Management and to be held on February 27 at the Hyatt Regency. Verne Harnish, CEO of Gazelles Inc. and founder of the Young Entrepreneurs Organisation worldwide, to speak at a one day seminar titled ‘Managing a fast growing business’, hosted by WA Business News and to be held at the Perth Convention Exhibition Centre on March 2. David Vos, Inspector General of Taxation, to speak at a GST breakfast hosted by PricewaterhouseCoopers, March 2 at Fraser’s Restaurant. Gary de Rodriquez, internationally acclaimed speaker and life coach, to speak at a seminar on generating success in career, business, relationships and health, organised by Mango Leadership, March 2 in Subiaco.