Philadelphia cartographer and New York Times graphics editor Bill Marsh describes his 30-year project to map his adopted city, his collection of hyper-dense axonometric maps, getting the Philadelphia Inquirer to chopper a photographer over the city for him, and the bygone days of hand-inked editorial maps (an early project: illustrating the nuclear annihilation of Grand Rapids, Michigan.) You can buy his magisterial map of Philadelphia for $7 from https://store.philamuseum.org/philadelphia-pictorial-map-and-walking-guide/

Pics of his 3x2ft absurdly detailed map of Philadelphia: every building facade, bus lines, restaurants, bathrooms, subways, the Rocky steps, it has it all
Buy it now for only seven bucks
Inspiration for his map: Constantine Anderson’s map of Manhattan
Hermann Bollmann’s map of Manhattan
Tadashi Ishihara’s map of Manhattan
His preferred printer: The Standard Group
Transit maps by Jug Cerovic
Larry Buchanan, who gifted me Bill’s map and made this episode happen <3

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