Will you please advise me, regarding this new word I have learned?

I’ve lived almost 59 years, and never heard this word, until today, when I heard it for the first time ever, in my life: JICAMA

I know what it is, but I don’t have any idea how to prepare it for eating, for the very first time in my life. Could you please give me some suggestions, and your own experiences with eating it?

I’m still in a state of shock, that I have never heard this word in my entire life, until today (9–30-08).

Thanks, in advance, for any recipe suggestions you have. I’m so excited!