Being able to identify personality type can help us exert our influence. It obvious that people can be or are characterized by their preference of general attitude. Whenever we have or behave different than our normal personality traits, people may take time to adjust to the situation. Understating our own values as well as the values of others can greatly help build the relationship, there are basically two types of personality. Extraverted (E) vs Introverted (I)

Personalities are always relatively stable, that’s important because it means that at work, you are not always going to change the personality of the people you come in contact with is always and basically known that “we are who we are”.
The value and importance of know how to detect personality is primarily to help leaders understand their own basic personality dimensions and then to learn to emphasize the positive and mitigate the negative aspect of their own style, also helps you understand other to know something about their personality. Your behavior is the thing you have the most control over at work.
Attitudes on the other hand are subject to change, we change our attitudes because of the belief that attitudes enhances behavior. But you can never just talk about “bad” and “good” attitudes. That’s meaningless and usually represents no more than a “blame game”.
https://www.guideempire.com/how-to-understand-your-personality/