London Underground map
The map that shows how the lines connect, not where they are.
Harry Beck drew the map in his spare time in 1931. He had realised that travellers underground do not need to know exactly where they are, only where to change.
The map was published in 1933 and was a success. Almost every metro map in the world follows the same idea today.
Materials: Print on paper and enamel signs
Manufacture: Printed as a pocket map and a poster.
The lines run only vertically, horizontally and at 45 degrees.
The stations are evenly spaced, whatever the real distance.
The interchange stations, marked with their own symbols.