Style: For some reason, we geoprofessionals (and, indeed, cartographers as a whole) have not developed one standard north arrow that everyone uses. Instead, there exist hundreds of the things out there to choose from, in all manner of styles. And even with that, geoprofessionals still sometimes get the idea that each company or department ought to develop its own. It is almost like a logo in these cases. And to this I say, well, why not? It is fairly easy to design one yourself and it will further help your cause to put a unique stamp on your map.