That's a great question. Well for me I like to be as minimal as possible really so I just use a dry erase mat or dry erase tiles and I make the maps as we're playing when needed. Realistically the game can be played Without Maps or without tiles or anything like that it is theater of the mind after all so I would say just go for it. 75% of all of my sessions don't involve Maps or pictures and if they do they're just very roughly Maps so that people can get a perspective of what's going on . The important thing is to have people envision your world in their mind so you don't really need a map.