The ISTJ Personality Type
The ISTJ is secure, reliable, and interested in their legacy and what they leave to those that come after them. They pride themselves on supporting the systems they value and on being loyal and honouring commitment. The ISTJ know and understand themselves and their history. They are traditional and self-disciplined. They strive to find healthy and sustainable routines and to live up to their commitments.
They are careful not to take on things that they can’t accomplish, and they know themselves and their abilities well. ISTJs like to study other people critically, and are always observing how other people solve problems. Typically, they like to see how other people solve a problem, and then to copy the good strategies and to improve the tactics that appear to be fruitless. An ISTJ desires to leave a legacy behind them, to master and to understand a field completely, to be experts within said field, to be seen as reliable and respectable, and to be remembered by other people.
Common issues for ISTJs
ISTJs may struggle with missed opportunities and of forgetting about what is important in the face of new changes and possibilities. They may read into patterns that aren’t really there and feel unsure of if they can trust other people. They may fear being disrespected and like they aren’t worthy of a position of status or power. They may feel like they aren’t accepted by other people and that other people are looking down on them. ISTJs may also struggle with feeling unsafe and with spending too much time preparing ahead of a task and being overly careful not to get hurt.
Traditional types tend to value security, health, self-discipline, respect, and living up to your duties and obligations. They desire to have power and a safe place in society and they need to feel that their position is secure. They have bright and open eyes and they are highly perceptive and comfortable in their own bodies. They have a tough and strong demeanour and tend to appear capable and powerful.
Leaders: The drive to be your own person
2. A distanced leader or an independent frontrunner who walks their own path autonomously and generally without the aid of others, sometimes at the expense of exclusion, isolation, and obsessiveness, similarly to INFJs, ISTJs, ISFJs.
Leaders tend to appear detached, focused, and distanced. Their body language is generally composed and steady. Their eyes and their smile is focused and narrow, giving them a sometimes intense look.
The IS types tend to be nostalgic and well grounded personality types that have a strong awareness of who they are, their past, and their identity. They tend to be good lecturers and guides, sharing their life lessons and stories with other people and teaching other people their ways and what they have learnt in the past.
An IS type will often tense up their eyelids and look at you in a way that may appear confused or doubting. They will be double-checking and thinking about what you said and they will be spotting for inaccuracies and things that don’t add up. They will be connecting what you said to things you have said in the past to make sure you’re not contradicting yourself.
Athletes (SJ) are self-disciplined and tend to be routinely and traditional people. They have a system for how they move, act, talk, and what they say and share in social situations. They rehearse in time of an event and they organise their surroundings according to a list or a set structure. They engage in self-disciplining behaviour, and frequently make efforts to create new routines.
Often, an athletic type will tense up and furrow their eyes. They will focus their gaze and perk up their nose. This signals that they are watching and observing you and signals to you to be careful and to watch your steps.
Architects: The drive to take control over your own fate
4. The architects are often ambitious and understand well the consequences and the advantages of different options. They have a strong grasp of logistics and how to organise procedures efficiently. They are good at studying how different mechanics interact to form a bigger system and what components are necessary for a system to work correctly. They also have a good understanding of when something isn’t working correctly. This trait is also shared with ENTJs, ESTJs and ISTJs.
Architects tend to appear serious and “down-to-business.” They tend to appear ambitious and like they know what they want. They tend to tense up and lock their upper lips firmly in position, in a way that shows coolness and rigour.
Investigators: The drive to make sense of the world
5. A logic-oriented type that wants to understand the laws and the reasons behind everything. Investigators want to know why things work the way they work, and they want to see the world as a world that can be made sense of. There needs to be clear reasons and arguments for why things are the way they are and there needs to be some rationality in the world.
Investigators often lock their jaws firmly in place, a posture that makes them come off more critical than other types. The investigators tend to appear level-headed and reasonable.
Famous ISTJs include first man on the moon, Neil Armstrong, president George Bush, and athlete Björn Borg.