The scale and velocity of world population increase over the last fifty years has been unprecedented in human history. Urbanisation, with over a billion people living in cities has become the key signature of this growth, with the urban population for the first time greater than in the country. These facts are startling, if common knowledge, however they are not much examined in the mainstream. Mike Davis’s book looks at this global phenomenon in detail, and shows clearly how the city has been turned into slums, and how poverty has been urbanised.

Slum mega cities have strange geographies, and densities that defy analysis and seeming logic. Here Peri urbanism where city and country are virtually indivisible is covered as is the continual subdivision of wealth and free space by mega slums that turn earthquake prone mountainsides into dense housing. These city slums are where the worlds problems will start, and where they must be solved.

But if you are looking for light reading this is not it, and although global capitalism is firmly blamed for this there are no fixes suggested in this book either. This story though is worth telling and the book is a powerfully argued proof that much of the world is suffering under impossible odds. bldgblog has a great two part interview with Mike Davis worth reading as a follow up.