Diego Herrera, artiste mieux connu sous le nom de Yayo, est né en Colombie. Il choisit de s’installer au Québec en 1987. Récipiendaire du prix M. Christie en 1996 et du Golden Smile en 1997, il réunit en 2008 une sélection de ses dessins parus dans la revue L'actualité dans le recueil Humoro Sapiens.
Diego Herrera, known as Yayo, immigrated to Montreal from a small Colombian village in 1987. He has published illustrated books for children and has illustrated magazine articles in Canada and the United States. His drawings and cartoons have received several awards. His next book will be The King Who Barked, writing by Charlotte Foltz Jones, and will be released in fall 2009.