Mary McGuiness is Australia's most experienced presenter on personality theory and it's applications, with almost 30 years teaching Type theory and accrediting professionals to use Type instruments. Mary regularly presents at national and international conferences on personality type and has been invited as keynote speaker at Type conferences in Brussels, Wellington and Sydney. Mary has presented workshops in London, New York, Dublin, Philadelphia, Dallas, Burlington, Auckland and Wellington, and in many cities and towns across Australia. Mary also presents Type theory at conferences for educational organisations, government departments, private companies, and for the Australian military. Mary is the Managing Director of the Institute for Type Development (ITD), a national training organisation that was the leading provider of Certification in the Myers-Briggs type Indicator instrument for 22 years and, more recently, the Majors Personality Type Inventory. Mary convened Australia's first national conference on psychological type and the MBTI in 1991, providing the launch pad for the formation of the Australian Association for Psychological Type (AusAPT). Mary served on the National Committee of the Australian APT for 10 years, with two years as national President, and was President of the Sydney Chapter for six years.