Kyokai – A Japanese Technique for Articulating Space
Edited by Kengo Kuma with photography by Kiyoshi Takai (144 pp., Tankosha, $68.50)

This fascinating volume from Japanese publisher Tankosha explores different conceptions of kyōkai, meaning “boundary,” in both traditional and contemporary Japanese architecture.  The Japanese tradition has an extremely rich and nuanced understanding of the demarcation of space, characterized in part by fluidity (as with moveable shōji), spirituality (successive Shinto gates), and the implied delineation of space (the traditional “shoe-removing stones” which mark a shift from an outer space to an inner space, even in the absence of walls or other structures).  Organized thematically with beautiful photographs by Kiyoshi Takai, Kyokai – A Japanese Technique for Articulating Space is a wonderful introduction to an extremely complex and fascinating topic.

Also of interest:

Form and Space in Japanese Architecture by Norman Carver. (OP editions currently available: 1, 2.)

Studies in Organic – Kengo Kuma and Associates.

Japan-ness in Architecture, Arata Isozaki. (Softcover version.)