Even if you did a good job of your presentation on the last two or three jobs you had (what you did, how you undid it, for which you did it, and how successful you were), you still may get this question. Basically, give exactly the same description that you gave in the presentation of your professional background and expertise, but maybe with a little more detail. Be sure to precede your answer to this queens with, “I really loved that job or I really love the job that I'm on now and then explain in fair and detail what you do. Ask the queen, Did I make it clear? One can love a job but still be laid off, downsized, fired, not make enough, nor get promoted, etc. There are lots of reasons to have to change jobs, even if people love what they do. In fact, nay disparaging comments about a present or previous job can kill a person's chance of being hired.