Javirroyo (Barcelona, 1972) is a graphic designer and illustrator. His designs and illustrations can be seen in Europe, the US, Canada, Japan, South Korea and Latin America. As an illustrator he has worked for several publishing houses and media outlets. He has also penned several comic books featuring La cebolla asesina (The Killer Onion), his best-known character. After the publication of Martín Berasategui y David de Jorge. Aventuras, desventuras y recetas (PRH/ Debate, 2016). He has teamed up again with the chef David de Jorge to write the definitive guide to the Spanish omelette: La tortilla española (PRH/ Debate, 2016).