Kerbal Space Program delta v map, how do I read it?

treat it like a tube map. every line between two points has a number, and that's the delta-v it costs to go from one to the other. you add up the numbers along the route you plan to fly and that total is what your ship needs. so for a mun landing you'd add kerbin surface to low kerbin orbit, then the transfer, then mun capture, then the landing. most maps also mark the spots where you can aerobrake instead of burning, which saves a lot going to anywhere with an atmosphere. then compare with the delta-v readout in the editor, which shows per stage. give yourself a decent margin on top, because the map assumes you fly efficiently and nobody does on their first attempt.