Roman Mars turns ‘99% Invisible’ city into a 100% visible book

Roman Mars has spent 10 years using his radio show “99% Invisible” to reveal the everyday quirks and delights of cities. Now he’s co-written a book called “The 99% Invisible City: A Field Guide to the Hidden World of Everyday Design.” Mars talks with DnA about tales from LA, writing for print v. radio, and whether he secretly yearns to be a designer.