The Miller Cylindrical projection is a world map projection based on a modified Mercator projection created by Osborn Miller in 1942. This projection is a compromise to the Mercator projection in that the polar regions are less distorted and better represented, but it is neither conformal or equal area. The Miller Cylindrical projection is used primarily to project world maps and can be seen in some modern atlases. This Mercator modification used to derive the Miller Cylindrical projection reduces the distance between lines of latitude as they approach the poles and decreases the distortion in area, however it introduces distortion in local shape and direction. Meridians are parallel and equally spaced, the lines of latitude are parallel, and the distance between them increases toward the poles. Both poles are represented as straight lines. Source.