Since cities as living environments are steadily gaining in importance, they must not only grow in size, but rather develop in terms of quality. A first important step is understanding how cities function. The identity of each city is characterised by the behaviour of its inhabitants. At the same time, living conditions and realities are formed by the anatomy of a city. This anatomy is mostly determined by external factors. Remarkably, certain urban structures are used in a similar way all over the world. These influences and their effects on human life are illustrated and comprehensibly explained in this volume. The illustrated visualisations range from neighbourly urban quarters, via agglomerations, to macroregions stretching over thousands of kilometers.