EFA is a pen name for Ricard Fernandez, a Spanish artist who left school at 16 to pursue his dream of being in comics. He has since published quite a few graphic novels and series. He also did the art for the superb Monet and Django (Reinhardt) biographies (NBM). Salva Rubio, is a Spanish writer specialized in history. With a master's degree in scriptwriting, he has been involved in many documentaries, short and feature length films. He also wrote the Monet and Django (Reinhardt) biographies with Efa (NBM).