My colleague and co-producer of Salz der Erde Mikel Landa wrote the accompanying article about the way traditional salt production changes the visual landscape.
The salt project was a 5 year collaboration completed at the end of 2015 between myself and the Spanish architect and photographer Mikel Landa. We documented the world's most fascinating and unique traditional salt making sites - from China to Bolivia, Senegal to Denmark. The result was a book published by mareVerlag in Germany.
You can see more images from this project on www.lukeduggleby.com.