The Library has floor maps on MazeMap and Google Maps.
When zoomed in, on the side of the maps are numbers. These are the levels of the library, and you can adjust the view to a specific floor.
The maps includes locations of Toilets and Stairwells, to assist with navigation.
On each floor of the library, usually near the stairwells you can find a physical map of the floor, and locations of subject areas.
The Library also has a touch-screen panel displaying MazeMap by the security desk near the entrance.