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ISTJ type

personality types

Find out how many people share your type, and what your strengths are!

Is the glass half full or half empty? It's half empty now, and it wouldn't surprise me if it dried up completely.

Prayer God, help me to begin relaxing about little details tomorrow at 11:41:32 am.

Animal personality Tortoise

The ISTJ tortoise continually plods along at a monotonous pace, even if they can't take a nap as ISTJs, they have a constant need to work.

Cat personality "Mr. Fastidious"

Won't eat unless the kitchen floor is newly waxed. Will glare at you until you clean his litter box. Likes to scratch; and it's the same place over and over, so you'd better get a scratching post right away if you want to keep your furniture.

Collective noun A precision of ISTJ's

Percentage of total population 6%

Interesting facts

  • Among the most reliable and dependable of any group.
  • Among four highest types in college GPA.
  • Maybe too perfectionist about details.
  • Value a work environment where everything is done according to guidelines.
  • Avoid attention, and like to work behind the scenes.
  • Overrepresented as managers and MBA degrees.
  • Achieve through hard work, perspiration over inspiration.
  • Insist on getting all their work done before playing.

Common careers

  • accountants
  • tax advisors
  • insurance services
  • entrepreneurs
  • legal secretaries
  • record keeping
  • teachers
  • bank examiners
  • nurses
  • management consultants

Famous ISTJ's

  • Warren Buffett
  • John D. Rockefeller
  • Harry Truman
  • Thurgood Marshall

Quotes by famous ISTJ's

  • "It takes 20 years to build a reputation and five minutes to ruin it. If you think about that, you'll do things differently." - Warren Buffett
  • "Don't blame the marketing department. The buck stops with the chief executive." - John D. Rockefeller
  • "A president either is constantly on top of events or, if he hesitates, events will soon be on top of him. I never felt that I could let up for a moment." - Harry S. Truman
  • "None of us got where we are solely by pulling ourselves up by our bootstraps." - Thurgood Marshall

Hobbies and recreation

  • chess
  • Othello
  • Nine Man Morris
  • hosting a monthly trivia night
  • rock climbing
  • golf
  • scuba diving
  • reading
  • computer games
  • watching sports

All 16 types

Your type is a combination of four preferences. Each preference was made by choosing between 2 letters in a dichotomy. The four dichotomies are:


Defines where you direct your energy. Extroversion indicates outwards towards the world, and Introversion indicates a tendency inwards towards your thoughts and ideas.


Defines how you process information. Do you prefer to process information through your five senses (Sensing) or do you prefer to trust your hunches and read between the lines? (iNtuition)


Defines how you make decisions. Do you prefer logical analysis (Thinking), or contemplating about how each option affects people? (Feeling)


Defines how you order your life. Do you prefer making plans and keeping to schedules (Judging), or do you usually keep things open? (Perceiving)

There are 16 types in total. Now that you know your type, check out your type description by following the appropriate link below!

How accurate were your results? Join in the discussion below.