Temperament: Guardian.


ISTJ ’s usually are traditional individuals who value the structure and believes of their family and especially those of society and culture. To those they love they want to provide stability, safety and strength. The ISTJ often feels a need to establish and follow protocols and thus can be found in commerce, executive positions, Law, medicine, the military and analytic fields. While work and family are priorities in the ISTJ 's life, they often enjoy solitary activities or those they can enjoy with their buddies, such as jogging, chess, fishing trips, football nights and when they are young, computer gaming. The ISTJ is the poster child for our ideal of the Father, without whom structure, stability and provision would vanish from society.

Communication Style

ISTJ ’s are naturally quiet individuals, not because they are shy, but because they don't see the need for unnecessary talk. When they do converse, it's usually because they have to explain something to someone. Doing so, ISTJ ’s get straight to the point, "This" is what you were asked for and "This" is what you'll get. When people explain something to an ISTJ , they prefer simple comparisons and examples rather than people’s personal takes on things. The ISTJ may become very talkative around very good friends and family, where they like to talk about things they’ve encountered or explain their personal insights, politics and other important issues in the world.

What goes on in your head

The ISTJ spends a lot of time by themselves, where they are either taking in information or deal with their memories. ISTJ 's like to read and they have a strong capability to absorb factual details that deal with theory and logic. When something interests them, no matter how complicated, they can spend hours getting to learn every minute detail of it. When reflecting on the past, the ISTJ consults their value system. They know all too well that sometimes they've been a little too inconsiderate and they now assess these moments in terms of what was right rather than what made sense. If they feel that they have been too harsh on someone they often change their ways and become more considerate with the people around them.

In Relationships

ISTJ ’s often have clearly defined expectations of what they want in a partner. For female ISTJ ’s this often includes the ability of providing a safe environment for the family and for male ISTJ ’s, the ability of exercising motherly duties. When courted, the girls like to be treated as ladies by gentlemen and the boys like to be admired by the ladies for their stature, strength and sophistication. ISTJ 's of both genders don't generally like to show affection when in public, although they quite like to be affectionate when they're in private. ISTJ 's don't usually consider dating someone casually and are always looking for a lifelong partner. The plans and expectations of an ISTJ can be shaken however when this type meets their natural match, the vibrant and clearly not so dependable ESFP. When this kind of relationship works out, these two types may unite in a lifelong bond of stability and excitement.

Growing up

ISTJ ’s are naturally abiding and good children who tend to become grownups earlier than other types. They are not likely to act out during puberty and may become parental figures themselves to their siblings. They are good students who tend to study hard and due to their great memory are often capable of retaining learned items for the rest of their lives. Being predominantly introverted and quiet during their teenage years they usually become more extroverted, pragmatic and career driven during their twenties, after which they continue to develop their ethical and empathic abilities.


 Highly Dependable and logic

 Hard Working and Detailed

 Factual and Realistic

 Structured and Just

 Organized and Economic


 Sometimes too private

 Sometimes too prude

 Sometimes too inconsiderate of others feelings

 Susceptible to overweight and alcoholism

 Occasionally too stubborn

How others should deal with this type

When dealing with an ISTJ , other types should be aware of their attention to detail and difficulties to deal with emotional content. ISTJ ’s sometimes apear harsh or too impersonal, but others should understand that ISTJ ’s deal with their emotions internally when they are alone, when in fact they can become quite emotional. Therefore, when you have an emotional argument to make and you want the ISTJ to think about how you feel, it is more effective to simply tell them how you feel and not how they should think or what they should do about that. If the ISTJ receives such information in a factual way, they will consider your concerns and quietly yet happily integrate them to their decisions in the future. As industrial as the ISTJ may seem, family and traditional values are of highest priorities to them and if their loved ones are not reaping the benefits of their actions they will feel that they have failed and thus your input and your feelings are very important to them and they often think about those when they are alone.

How you should deal with others

As an ISTJ you should be aware that other types are not as logical and don’t see or understand the relevant facts and details of things as easily as you. However, values and feelings are just as real and factual as more objective data and they should be of equal value to you. If people around you appear to become irrational and too emotional, you can try to figure out what it really is they want and factor in this information to your decisions. People usually only get loud and emotional when they feel that they are being neglected or misunderstood, which is why it is important to let them know that you care for their feelings and would like to know exactly what it is that they are trying to say. If you receive information in such a clear cut fashion, it will become easier for you to include others wishes in your decisions to the benefit of all involved.