To know your own personality. I've found this to be very helpful.
http://www.humanmetrics.com/cgi-win/JTypes2.asp
I tested as the following:
Your Type is
INFJ
Introverted Intuitive Feeling Judging
Strength of the preferences %
78 50 50 22
Qualitative analysis of your type formula
You are:
* very expressed introvert
* moderately expressed intuitive personality
* moderately expressed feeling personality
* slightly expressed judging personality
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More from:
http://keirsey.com/personality/nfij.html
http://typelogic.com/infj.html
http://www.humanmetrics.com/cgi-win/JTypes2.asp
I tested as the following:
Your Type is
INFJ
Introverted Intuitive Feeling Judging
Strength of the preferences %
78 50 50 22
Qualitative analysis of your type formula
You are:
* very expressed introvert
* moderately expressed intuitive personality
* moderately expressed feeling personality
* slightly expressed judging personality
-------------------------------------------------------------------
More from:
http://keirsey.com/personality/nfij.html
http://typelogic.com/infj.html