What goes up : the right and wrongs to the city The rise and fall of New York a radical architects view of the destruction of the city Michael Sorkin is one of the most forthright and engaging architectural writers in the world. In What Goes Up he charts the dehumanising regimes of mayors Bloomberg and De Blasio that created a city of glittering towers and increasing inequality. He looks at what has happened to Ground Zero as a place of memory has been reconstructed by staritects and turned into malls. The city he suggests has to be reimagined from the street up on a human scale to develop new ways to revitalise neighbourhoods Alongside these essays on New York Sorkin also brings his lifetimes experience as an architect to bear. He talks of the joy of observing a city in order to understand it. Why a young designer must learn to draw by hand rather than only use a computer. There are also personal encounters with some of the greatest names who have changed the city. Sorkin gets lost in Rio with Zaha Hadid; talks about the old Bronx with Marshall Berman; and gets on the wrong side of Daniel Libeskind