Navigating Scotland with a printed map is simple, most tourist routes are via a single direction road, all well signposted. Navigating a city (Edinburgh/Glasgow etc) down to street level less so, same as all cities. Navigating to an airport GLA/EDI/ABZ etc is easy - excellent signage.

Maps are usually issued (flimsy type) free at rental locations. All service stations on main roads will stock road atlas/maps. Leaving airport GLA/EDI etc and heading off North, for example, you will head towards Perth then off towards Inverness or Aberdeen. All road signs are big and obvious!