Because of the lack of information in Spanish about sumo, he opened the first Spanish language website about sumo at: http://www.leonishiki.com/sumo and later started to publish an E-zine carrying news on the sport. This became ‘Boletín de Sumo en Español’, a pdf magazine that can be downloaded monthly from http://www.leonishiki.com/sumo/boletines/boletines.html.
He is also the moderator of the Spanish Sumo Mailing List at: http://es.groups.yahoo.com/group/sumo_esp/.
In 2006, he published the book ‘Sumo, la lucha de los dioses', the first and only Spanish language book at present about the world of sumo. He used to collaborate with Eurosport as a sumo and curling (another of his favourite sports) commentator and since early 2007, has been translating articles into Spanish for ‘Sumo Fan Magazine’.