The ISTP. The ISTP’ movements are calm, precise, very restrained, seen from the outside it would seem that the result obtained is always greater than the efforts made. They are characterized by “quiet perseverance in order to complete everything that began, an inner responsibility towards a cause and modesty. The ISTP is not a “Don.

ISTP at a glance. ISTPs are diligent workers who genuinely enjoy becoming experts at a craft or in their career. They are cool and level-headed in a crisis and can quickly determine what needs to be done and effectively solve the problem. They are tolerant and logical. And while they are slow to anger, they generally have little tolerance for.