Ship map

When you get on the ship, they give you a map like this of the ship.
For people who aren't navigationally inclined, or who have problems reading diagrams, it can take a while to get used to navigating around the ship.
They also combine two different types of map - one like this one which shows the ship from the side, and a top-down one.
It's a good idea to do a walking tour of the ship soon after you get on - once you walk around a bit you won't need the maps anymore.