Slow Urbanism literature: The Spontaneous City of Urhahn

The buro of Urhahn has a long tradition on the theme of spontaneous development and how to accomodate it in urban design plan or strategies. Recently they published a new book called the 'Spontaneous city' (de Spontane Stad) with a manifest on spontaneous development. It's mainly about facilitating small initiatives and co-producing the development of an area as a municipality.