Includes everything
When cities are shown in yellow and countryside shown in green When fishing industry is shown with an icon depicting a dead fish When west is depicted as being toward the top of the map When average incomes are given as a single number for an entire state
All maps exclude a-lot more than they include and can and doesn't include bias.
"All maps lie flat" means that when we represent a three-dimensional object like the Earth on a two-dimensional map, some distortion and misrepresentation of features will occur due to the nature of cartography. "All flat maps lie" is a play on words that reflects this idea - even though flat maps are convenient for navigation, they inherently contain inaccuracies and distortion.
Distortions in maps occur due to the challenge of representing a 3D spherical surface on a 2D flat plane. This distortion can manifest in various ways, such as in shape, size, distance, or direction. Different map projections aim to minimize specific types of distortions depending on the intended use of the map.
Because it shows detailed maps of all area of the world.