Urban structure is the arrangement of land use in urban areas, in other words, how the land use of a city is set out urban planners, economists, and geographers have developed several models that explain where different types of people and businesses tend to exist within the urban setting. Urban structure can also refer to urban spatial structure, which concerns the arrangement of public and private space in cities and the degree of connectivity and accessibility. Since the early twentieth century, our cities have been spreading out across space, occupy it and transform it: the resulting patterns and regularities are often called, “urban structure‟, and numerous questions derive from this concept. The idea of urban structure itself is problematic, since any given city is structured in multiple ways along multiple dimensions, as postmodern thinkers have emphasized. This lecture aims to discuss what is meant by urban structure to broadly summarize some of the general patterns and processes such as organic patterns, the grid, the city as diagrams, the grand manner and the skyline. In addition, it also purposes to discuss interrelations between urban structure and city forms.