"After more than 50 years of research and development, the current MBTI [Myers Briggs Type Indicator] is the most widely used instrument for understanding normal personality differences. More than 2 million indicators are administered annually. It is used in the USA, Australia and internationally and has been translated into many languages including Japanese, Spanish, Korean, German, Danish, Swedish, Vietnamese and Chinese. The MBTI is used in: Self development , Career development and exploration, Relationship counselling, Academic counselling, Organisation development, Change Managment, Selling, Problem solving, Management and leadership training, Education and curriculum development, Team building, Diversity and multi-cultural training, Coaching and mentoring, Communication Training, Health Care, Grief Counselling, Conflict Management." About MBTI: http://www.itd.net.au/aboutmbti.htm. Please see also my SOI.

Portrait of an INTJ: Introverted iNtuitive Thinking Judging (Introverted Intuition with Extraverted Thinking): "Independent, original, analytical, and determined. Have an exceptional ability to turn theories into solid plans of action. Highly value knowledge, competence, and structure. Driven to derive meaning from their visions. Long-range thinkers. Have very high standards for their performance, and the performance of others. Natural leaders, but will follow if they trust existing leaders." http://www.personalitypage.com/INTJ.html.

"More so than any other [of the sixteen]  personality type[s], INTJs are brilliant when it comes to grasping complex theories and applying them to problems to come up with long-term strategies." Careers for INTJ Personality Types: http://www.personalitypage.com/INTJ_car.html