Luis Koga, 41, who has been a Japanese language professor, translator and calligrapher for 25 years, demonstrates calligraphy for the event “Japan in the Metro” (Japón en el Metro) at a Mexico City Metro station. Koga offered to write the names of attendees in Japanese for free, during one portion of the monthlong event, a collaboration between the city’s public transportation system and the Japan Collective, which presents different Japanese-style artistic activities at six of the 195 metro stations in Mexico City.