Map Projections

A map projection is used to portray all or part of the round Earth on a flat surface.

- mac.usgs.gov (US Geological Survey)

Classes of map projections

Cylindrical
Conic
Azimuthal

Classic map projections

Mercator
Albers Equal-Area Conic
Oblique Aspect Orhtographic Projection
Unprojected Longitude and Latitude
Buckminster Fuller's Dymaxion