ISTJs are generally prudent, quiet, and highly concentrated. They are thorough in everything they undertake and possess a strong sense of reason. They remember facts accurately and systematically, handle tasks with care, and bear a strong sense of responsibility. With a strong grasp on reality, they are organized and calm, tending towards conservatism. They rely on past experiences to solve problems and display great patience for repetitive everyday tasks. However, they sometimes struggle to understand their own feelings and those of others, as well as the broader perspective. Their skills shine in fields requiring precision and organization such as accounting, law, production, architecture, medicine, clerical work, and management. They remain stable even in crisis situations.