Technically speaking, even referring to the earth with words like "up" or "down" or comparing places with words "above" or "below" is flawed, considering that the earth is a spherical body (it's actually slightly "fatter" at the equator) and flying through 3 dimensional space with no reference of up or down.

However, the issue of "up" and "down" does become an issue when viewing the surface of the earth projected onto a flat piece of paper (a map). And the effect of the orientation of a map is more significant than you might realize.

Standard Size: 840mm x 560mm   -  Also available in A4 size Laminated