Which version should I choose? If you have no idea on which latitude you live on. Check this site (www.latlong.net) and search for you city. In the shown case f.e. “Wiesbaden” then check the GPS coordinates. The first 2 digest shows the latitude, the letter at the end if you are on northern or southern hemisphere “N” od “S”. If you live on let’s say 48° N you would choose the Edition for 50°North. If you live on 44°N you would choose the Edition for 40°. Hope that helps with selceting the correct Edition.