There are some great recipes here: http://www.ciaoitalia.com/recipes/search?query=farro&x=16&y=4

Check out this recipe, http://food52.com/recipes/5092_summer_farro_salad -- the first couple steps walk you right through the process!

I like to do it like pasta, in lots of water or stock. Add to already boiling liquid, and let it bubble away for about 20 minutes. then drain.