Boy am I sick of this manual I will add that a knowledge of Lat/Long and USGS Quadrangles are as important. Most maps available are lat/long, not MGRS. I much prefer MGRS since that is what I have used for the last 15 or so years. Luckily, I have MGRS maps for most of my stomping grounds. I also have USGS maps and they seem to be more up to date than the Defense Mapping Agency product.