Image taken on Dec. 10, 2016 shows Enrique Ferrari on night-shift sanitory duty in the Pasteur-AMIA subway station, in Buenos Aires, Argentina. Ferrari, who makes his living working from 11 p.m. to 5 a.m. cleaning the metro station, transmits his passion for writing. Until now his novels have been translated into French and Italian and he has received awards in Argentina, Spain, France and Cuba. (Xinhua/Martin Zabala)