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    Professor Jonathan Koestler Personality Type, MBTI

    What is the personality type of Professor Jonathan Koestler? Which MBTI personality type best fits? Personality type for Professor Jonathan Koestler from Knowing 2009 and what is the personality traits.

    Professor Jonathan Koestler
    ISTJ

    ISTJ (6w5)

    Professor Jonathan Koestler personality type is ISTJ, which is the last letter in the Greek alphabet. He was also the only one of the ‘Big Four’ to be shown in his true nature (S).

    The ISTJ’s are well known for their loyalty, kindness, and their ability to take care of their loved ones. They are good listeners and they can be found in all walks of life.

    The ISTJ’s are the keepers of the home and they do this without expecting anything in return. They are never critical or judgemental toward others. They are generally well liked for their kindness, but they do tend to be too nice to others.

    ISTJ’s are also known for their ability to work well with others. They are loyal and they will often choose to stick to their team over all others for the sake of their team.

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