In this special issue of a+u featuring the emblematic Japanese teahouses, 33 works are presented, 22 of which are newly photographed. From the classic masterpieces by Sen no Rikyū and Kobori Enshū, to modern works hovering between tradition and renewal, this issue also introduces architecture that uses teahouses as a design reference. Other than photographs, models, and floor plans, detailed interior elevations and sections are also included. With a text from guest editor Kirisako Kunio on the idea of “relationship with nature,” as well as a conversation with Ishigami Junya, this issue delves deeply into the aesthetics and culture of the teahouse.