Karpa was one of the regular artists for the magazines Jaimito and Pumby of the publishing house Valenciana. He was active from 1947 through the 1980s. He produced numerous stories in his typical clear style, like several stories with Jaimito's title character.
Other creations by Karpa are 'La Familia Cañamón', 'Bolita y El Profesor' (Jaimito), 'Bolita', 'Simbad el Marino', 'Kangurito', 'Pulgarín', Jimmy' and 'Flechita y Perico' (Pumby).
