Planisphere Celeste Meridionale, 1705

Notable Cartographers and Their Maps

Caitlin Dempsey

Cartography is the art and science of map making. Being a cartographer requires attention to detail, a talent for visualizing ...

Tissot’s Indicatrix: Measuring Distortion in Map Projections

Elizabeth Borneman

Tissot’s indicatrix is a mathematical contrivance used in cartography to characterize local distortions in map projections.

A circular map of the world centered on the North Pole. The oceans are blue and the land masses are greens and browns.

Teaching Context When it Comes to Map Projections

Caitlin Dempsey

Context is needed in teaching about distortion created by different map projections.

A Look at the Mercator Projection

Amanda Briney

Learn about the Mercator map projection – one of the most widely used and recently, most largely criticized projections. Amanda Briney takes a look at the history and development of the Mercator projection, how it works and some criticisms of the projection.