Hello flyer. I understood about magnetic north and true north. Thank you. If I have a compass, then I can see where is the magnetic north. But how can I see where is the true north? Soon, I will take a weather handheld multimeter which can show me the true heading and the magnetic heading. How can it show me the true heading? It does not have connection with gps - satellite or mobile internet or something similar. It only has a digital compass. I am wondering because the angle between true north and magnetic north changes and it depends on my position. For example in the center of Canada, or in the center of USA (maybe in Texas), the direction of magnetic north is the same than the direction of true north, but in Greece it is different. If you live in the straight line which begins from magnetic north and ends in true north, then you will see that the two norths have 180 degrees difference: http://upload.wikimedia.org/wikipedia/commons/0/0a/Magnetic_North_Pole_Positions.svg
Also, I understand about the degrees and the names. To summarize, we have: 0 - 11.25 N 11.25 - 33.75 NNE 33.75 - 56.25 NE 56.25 - 78.75 ENE 78.75 - 101.25 E 101.25 - 123.75 ESE 123.75 - 146.25 SE 146.25 - 168.75 SSE 168.75 - 191.25 S 191.25 - 213.75 SSW 213.75 - 236.25 SW 236.25 - 258.75 WSW 258.75 - 281.25 W 281.25 - 303.75 WNW 303.75 - 326.25 NW 326.25 - 348.75 NNW 348.75 - 360 N I hope I have understood it and I am right, dear flyer.