The book is about creating privacy in public space. Learning from the construction frame, my first public social experiment in Brunswick was held on a long narrow unnamed street on Sydney Road. My purpose is to create a sense that makes people feel at home in that street. To explore the idea, I wanna ask a question not only to myself but also to other landscapers architects and urban designers: how to create a sense of privacy in public space. Through studying the elements from the site, I found out that the ratio of closed space of unit area has a positive correlation to the level of privacy. From there, we could speculate the combination of different type of spaces is almost endless. Therefore, if we provide the material that could construct a unit, there are hundreds of thousands of possibilities for people to create whatever type of space they want, from the most private space to the most open space.