As a native New Yorker with a lifelong curiosity about urban infrastructure, photographer Stanley Greenberg--author of the bestselling 'Invisible New York'--observes characteristics of the city that most people miss. And the more he explores the city, the more he understands it as a huge catalog of features that repeat, vary, morph, and multiply--block by block, neighborhood by neighborhood. He embarked on an extraordinary journey, walking every block of Manhattan from the Battery (where there is today much more land than when the Dutch first arrived) to Inwood (which retains more of its original topography than any part of the city) to photograph striking and subtle urban typologies along the way. Alleys, skybridges, parking sheds, architectural relics, tiny streets, water infrastructure--these and more were captured to create an incomparable visual chronicle of the city. What are the objects that a city needs to be a city? 'Codex New York' organizes them into an idiosyncratic field guide that prompts new paths of inquiry. When were they built? 'Codex New York' also serves as a temporal marker; many of the empty spaces Greenberg photographed have already been built on, obscuring the views of the city that now exist only in images. Joining the ranks of great photographic documents of the city, 'Codex New York' is a critical look at and investigation of what New York is made of.