Reguero Sanz, Itziar y Berdón Prieto, Pablo (2025). Guía contra la desinformación. Claves para navegar en la era de la polarización. Madrid: Los Libros de la Catarata. 96 pp.

In today's information ecosystem, defined by speed, fragmentation, and uncertainty, Guía contra la desinformación. Claves para navegar en la era de la polarización, by Itziar Reguero Sanz and Pablo Berdón Prieto (Los Libros de la Catarata, 2025), stands out as a reference work for understanding, contextualizing, and combating one of the most complex and dangerous phenomena of the 21st century: disinformation. Its publication could not be more timely, as it comes at a time when institutional discredit, ideological polarization, and the proliferation of content generated by artificial intelligence converge in a perfect storm to erode truth.