There are several different theories of personality.
One recognized by psychologists is that of the four basic personality groups: Sanguine, Melancholy, Choleric, and Phlegmatic.
Knowing and understanding these personality groups, (or temperament types), may assist with interactions between yourself, coworkers and supervisors. Identification of the strengths and weaknesses within these groups also assists you in comprehending what you, and others, are capable of performing in the office.
Description of Groups
In the groups below, you may find your own personal description fits into two of the categories, for exampleSanguine and Cholerica common combination. It is not unusual for some people to find traits in all four groups listed.