This roundtable discussion about The New York Subway Map Debate, a book about the April 1978 Cooper Union debate over the design of the New York subway map (previously) and related subjects, featuring John Tauranac himself (who participated in the 1978 debate), alerted me to the fact that an audio recording of that debate is available online. (A discussion about a book about a debate: this all feels a bit recursive.) [Kenneth Field]