First translated in English ten years after its original Dutch publication in 1962, this book has inspired practitioners for generations. It’s proposal to distinguish the infill from the support - what users can individually decide in a housing process from what users share - has turned out to be feasible in practice. The Natural Relation - the interaction of people with their immediate environment and the central concept of the book - is the result of that distinction. It is essential to the well-being of everyday environment regardless of function or available resources.