directed by Kang Hong-bin (Director of the Seoul Museum of History) ; edited by Seoul City Wall Research Center, Seoul Museum of History, Choi Hyeongsoo (Head of Research Center), Kim Sunjung, Cho Eunjoo, Ok Jungwon, Kim Jackyung ; coordinated by Lee Miac [and 8 others] ; text written by Park Sangbin, Kim Sunjung, Cho Eunjoo, Ok Jungwon, Kim Gihun, Kim Muntack, Lee Hansol, Park Nawn ; translated by Timothy Atkinson