After spending more than 9 months with the miners of Potosi in Bolivia, Miquel Dewever-Plana has just published the book Potosí en sol mineur (Artem&Cetera/Blume), accompanied by an unpublished novel by Isabelle Fougère. From 1545 the Spanish conquistadors exploited for three centuries the Cerro Rico (“The Rich Mountain”), which became the largest silver mine in the world. The small hamlet, perched at an altitude of over 4,000 meters, built at the foot of this mountain, became in a few decades a city as big as London or Paris. Five centuries later, the mountain is still exploited by some thousands of peasants who have become miners, in extremely precarious working conditions, reminiscent of those in Zola’s Germinal. The two authors and the association Artem&Cetera have set up an economic model that allows them to dedicate the profits from the sale of the books to finance a free edition in Spanish for the miners of Potosi.