Image of the City, a book written by Kevin Andrew Lynch. A city planner, designer and graduated from MIT. The book reveals the key physical elements in a built structure of a city:  Paths, Edges, Nodes, Districts, and Landmarks. He used three disparate cities as examples:  Boston, Jersey City and Los Angeles. He reported that the users understood their surroundings by forming MENTAL MAP with these five elements. The book also discussed on Concept of Imageability. The quality of the physical object that gives a strong vivid image to an observer. CITY SHOULD BE RECOGNIZABLE.