ISTJ are:
Serious and quiet, interested in security and peaceful living
Extremely thorough, responsible, and dependable
Well-developed powers of concentration
Usually interested in supporting and promoting traditions and establishments
Well-organized and hard working, they work steadily toward identified goals
They can usually accomplish any task once they have set their mind to it.
Loyal, consistent, orderly, respect fact, sensible, thorough, steadfast, detached, organized, duty bound, careful, practical, reliable, calm, systematic, value tradition, realistic, analytical, honor commitments, focus on tasks, objective, painstaking, reserved, managing details, prefer working alone, doing what should be done.
Often called "Inspector". They have a keen sense of right and wrong, especially in their area of interest and/or responsibility. They are noted for devotion to duty. Punctually is a watchman of the ISTJ. The secretary, clerk, or businessman by whom others set their clocks is likely to be an ISTJ.
Career Matches:
Accountant
Administrator
Auditor
Computer programmer
Computer Specialist
Dentist
Detective
Doctor
Electrician
Executive
Financial Officer
Judge
Lawyer/ Attorney
Librarian
Manager
Marketer
Math Teacher
Mechanical Engineer
Military leader
police
Scientist
Steelworker
Systems Analyst
Technical Specialist
Technician