Given the changing characteristics of public and private urban spaces, the lecture covers a wide range of city-related topics following a two-folded target. As urban space represents the interface of communication and urban investigations, it is crucial to bring participants nearer to the concept of it, including crossing boundaries. The second part of the lecture block will deal with the role of urban planning in shaping urban space following its redefinition. With this insight, participants would understand the role of urban space and the formal ways of planning it.