produces a relaxed atmosphere and make us feel relieved. Pets, companion animals of the people, are usually small, humorous and charming. We find what we call "pet architecture", architecture having pet like characteristics, existing in the most unexpected places within the Tokyo city limits. Atelier Bow-Wow documented these micro buildings in detail through photographs, elevations, maps, 3D sketches, and brief descriptions in their publications “Pet Architecture Guide Book” and “Made in Tokyo." Behaviorology Behaviorology is the study of functional relationships between ‘behaviour’ and its many independent variables in the determining environment. Behaviorological accounts are influences and based on the current social and physical environment in which the behaviour occurs, the personal history of the behaving organism, and the behavioural capacity of the given species. It is also a clever means of integrating the ‘built’ environment across different scales; furniture, architecture, structures of civil engineering and urban planning. “It positions projects within an ecosystem of behaviours as elements which participate in spatial production.” The behaviorologist discovers the natural laws which govern and dictate behaviour. Through this knowledge they then develop behaviour engineering technologies relevant to behaviour in many fields including architecture, education, and entertainment. It can be applied to natural elements as well as buildings (not only humans). Architecture firm Atelier Bow-Wow is famous for its interpretation and use of the concept of behaviorology in its design work. According to founders Tsukamoto and Kaijima, behaviorology defines architectural expression through the understanding of the complex relationship between people (the inhabitants of a space), the built environment, and urban space. Bow-Wow's Behaviorology goes further than ‘form follows function’: it bases form on the behaviour of both the building and natural elements. The study of a building's articulation, inherent properties of elements such as heat, wind, light, water and the understanding of individual and common human behaviour leads to a stronger localized architecture. Micro Public Space Micro Public Spaces are devices proposed by Atelier Bow-Wow which create social platforms. Micro Public Space shows Atelier Bow-Wow's way of thinking about the space, i.e.social space, a concept influenced by Henri Lefebvre that discusses 'a space is produced neither by architects nor by city planners, nor by the users who live in space: space is not consumer-generated but space-generated', therefore, 'it is not people who creates space, but social spaces that use people to bring themselves into being'. Atelier Bow-Wow creates Micro Public Spaces using the framework