Links: Slums, NZ IPOs, Columbia, NY Traffic The Classic Slum – an extended review and summary of the book of the same name by Robert Roberts. It is about the English slum that Roberts grew up in the early 1900s. IPOing in NZ – notes from the NZX and Xero presentation – Summary by Lance Wiggs of a presentation by Xero CEO Rod Drury. The slides are also linked. Ungridlocked – What happened when New York closed traffic in Time and Herald Squares. Columbia’s Last Flight – The inside story of the investigation—and the catastrophe it laid bare (2003)