Spotting reel little

Does anyone know where I can get a good map of Rome for tourists online? - free tourist map of d.c.

I am going to Rome in October for a working conference. I have 1 1 / N 2 days of free time, I want a plan, to see what someone knows where I can have a very good map of Rome, which is simply working for tourism? I most of my trip and no time to look at a map to your visit!

Thank you very much!