YKTO contains over 1,500 photographs by Tomoyuki Sagami of buildings and houses constructed in Japan soon after World War II. Presenting images taken between 2006 and 2017 in Yokohama, Kawasaki, Tokyo and other cities (hence the book’s title), Sagami creates an archive for future generations of idiosyncratic architectural styles that are disappearing due to changing laws and lifestyles, and the ever-growing Japanese metropolis.