Ernesto Picco has a doctorate in Social Sciences from the University of Buenos Aires, lectures at the Santiago del Estero National University and has contributed to publications including Crisis, Anfibia, Tucumán Zeta and Subida de Línea. As an independent writer, he has written about Cuba, the Dominican Republic and the Falkland Islands. Crónicas del litio: Sudamérica en disputa por el futuro de la energía global is both an investigation and a work of travel writing, in this case about a journey to parts of Argentina, Chile and Bolivia, researching a matter that has become a hot topic. In conversation with the El País journalist, David Marcial Pérez Muñoz.