There are two aspects to this question and both are equally important dependent on what stage you are at looking for work or entering into the world of employment.
If you are new to the world of work then describing your personal qualities and weaknesses are obviously going to be easier than your professional ones. But what you will find is in many jobs the skills that you need in your personal life will be equally as important as those you need in your professional one.
Finding out who your are can be a very challenging experience and most people don't really know the true answer to the question so to make it more meaningful think about your attributes in relation to certain types of work.


Who Am I?
Remember: it is always better to ask someone than presume you know better!