In my constant state of curiousity, I sometimes find myself doing personality tests because A) I get a kick out of them and the results and B) I have way too much time on my hands in my current occupation. The test I took today was a Jung Typology Test. It was very quick and painless. I simply answered a number of "yes" or "no" questions and then I was given my type, which is a INFJ (explained below), and multiple, detailed explanations from different Jungian analysts. Of course, it's all free. To take the test yourself, go here: Typology Test
Here's what one analyst (the most concise) has to say about the INFJ personality:
The Counselor Idealists are abstract in thought and speech, cooperative in reaching their goals, and directive and introverted in their interpersonal roles. Counselors focus on human potentials, think in terms of ethical values, and come easily to decisions. The small number of this type (little more than 2 percent) is regrettable, since Counselors have an unusually strong desire to contribute to the welfare of others and genuinely enjoy helping their companions. Although Counsleors tend to be private, sensitive people, and are not generally visible leaders, they nevertheless work quite intensely with those close to them, quietly exerting their influence behind the scenes with their families, friends, and colleagues. This type has great depth of personality; they are themselves complicated, and can understand and deal with complex issues and people.
Counselors can be hard to get to know. They have an unusually rich inner life, but they are reserved and tend not to share their reactions except with those they trust. With their loved ones, certainly, Counselors are not reluctant to express their feelings, their face lighting up with the positive emotions, but darkening like a thunderhead with the negative. Indeed, because of their strong ability to take into themselves the feelings of others, Counselors can be hurt rather easily by those around them, which, perhaps, is one reason why they tend to be private people, mutely withdrawing from human contact. At the same time, friends who have known a Counselor for years may find sides emerging which come as a surprise. Not that they are inconsistent; Counselors value their integrity a great deal, but they have intricately woven, mysterious personalities which sometimes puzzle even them.
Counselors have strong empathic abilities and can become aware of another's emotions or intentions -- good or evil -- even before that person is conscious of them. This "mind-reading" can take the form of feeling the hidden distress or illnesses of others to an extent which is difficult for other types to comprehend. Even Counselors can seldom tell how they came to penetrate others' feelings so keenly. Furthermore, the Counselor is most likely of all the types to demonstrate an ability to understand psychic phenomena and to have visions of human events, past, present, or future. What is known as ESP may well be exceptional intuitive ability-in both its forms, projection and introjection. Such supernormal intuition is found frequently in the Counselor, and can extend to people, things, and often events, taking the form of visions, episodes of foreknowledge, premonitions, auditory and visual images of things to come, as well as uncanny communications with certain individuals at a distance.
Mohandas Gandhi and Eleanor Roosevelt are examples of the Counselor Idealist (INFJ).
**This information is taken from here: Keirsey