In cartography, the equirectangular projection is a modification of the plate carrée projection, with the longitude lines (meridians) spaced closer together, forming rectangles with the latitude lines (parallels) instead of squares. In this projection, there are two standard parallels, resulting in less distortion at mid latitudes, but causing distortion at the Equator.

Equirectangular image projections map the latitude and longitude coordinates of a spherical globe directly onto horizontal and vertical coordinates of a grid, where this grid is roughly twice as wide as it is tall.  Horizontal stretching therefore increases further from the poles, with the north and south poles being stretched across the entire upper and lower edges of the flattened grid.  Equirectangular projections can show the entire vertical and horizontal angle of view up to 360 degrees.

Visit this link or click the image below for a collection of these projections created by studio360, which are also very suitable as large format prints: