Un Mundo Feliz is an independent project led by Sonia Díaz and Gabriel Martínez, cultural activists, authors, editors, researchers, curators specializing in graphic design, and designers. They are the authors of «Pictopía» (Promopress 2008),« Iconicity / Imagomundi» (Promopress 2011-2015), «The New Disasters of War»(Ediciones de Ruina 2012), «Crit-Icon Stencil» (MUSAC 2015), «Towapo. Ethics for Survivors & Aliens» (Ediciones Complutense 2019), «Woman Sans» (Mincho Press 2020), «Confluencias» (Experimenta Ediciones 2021),« Protest Pictogram Activism» (Hoaki Books 2021), «Félix Beltrán Siempre el diseño» (Ediciones Complutense 2022), «Félix Beltrán Visual Intelligence» (Optik Books, 2022), and «Iberoamérica Gráfica. Maestros: Félix Beltrán» (Experimental Libros 2025), «Iberoamérica Gráfica. Maestros: Cruz Novillo» (Experimental Libros 2025) and «Iberoamérica Gráfica. Maestros: Horacio Añón» (Experimental Libros 2025). They are editors of the independent publication «Bastard Art Review» and promoters of self-publishing, fanzine, design and typography festivals such as Madrid Gráfica, SuperGráfico or TypoMad. They have curated exhibitions on the work of designers Félix Beltrán, Alain Le Quernec, Pekka Loiri, Teresa Sdralevich, Michel Bouvet, Lex Drewinski, El Fantasma de Heredia, Onaire, Mirko Ilic, Pilar Villuendas, Óscar Mariné, Pepe Cruz Novillo, Manuel Estrada and others. Their work has appeared in more than 90 publishing projects and they have participated in numerous national and international projects, events and exhibitions.