in lifespan, so today's situation can be said to include a mixture of first, second and third generation buildings. With this we witness a variety of building behaviours, reflecting the generational differences. Houses which are produced now are a part of the fourth generation, determined by the realities of void metabolism. Atelier Bow-Wow ask: “what therefore, should a fourth generation house be?” 1. Interior spaces be inviting for those who are not family members. 2. The quasi-exterior spaces be introduced in a positive manner. 3. The gap between neighbouring buildings be redefined. Publications Behaviorology Through text and photographs Behaviorology covers the majority of Atelier Bow-Wow's work up to 2010 including built projects, temporary exhibitions, art installations, architectural-furniture hybrids, and their research on architecture and urbanism. The book opens with an introductory statement by Yoshiharu Tsukamoto which gives his explanation of Atelier Bow Wow's concept of ‘behaviorology’ including their hypothesis that behavior could be central to the understanding of the links between human life, nature, and the built environment. “Behaviorology brings about an immediate shift in subjectivity, inviting many different elements together and calling into question who or what may be the main protagonist of a space. Through this ecological approach our imagination follows the principles of nature and experiences space from a variety of perspectives. When one is surrounded by and synchronized to the liveable rhythms embedded in different behaviors – there is no experience quite so delightful.” He then discusses several of the partnership's other key design theories and concludes the essay in a section titled ‘Possibilities for behaviorology’, which relates behaviorology to these theories and discusses it as an integral part of these concepts. Although their works have often been realised individually, to them this is in no way “schizophrenic; rather projects tend to contaminate, inform, and mutually develop one another”. Following Tsukamoto's commentary, essays and a synopsis of each project are dispersed between an extensive number of large colour photographs of Atelier Bow Wow's works. Architectural historian turned architect Terunobu Fujimori's essay reflects particularly on how Atelier Bow Wow's research has informed their work, and their embodiment of the “eccentric gaze” which is discussed in relation to the architect Wajiro Kon and the Roadway Observation Society. “Their work is not an architecture of spaces, but an architecture of relationships”. Art curator Meruro Washida's essay comments on Atelier Bow Wow's success in art, while Yoshikazu Nango and Enrique