Roman Mars hosts the radio show and podcast 99% Invisible. It's a show about the little known stories behind everyday design and architecture. Prefabricated homes. Trash can design. Even those little ramps you see on sidewalk corners: how and why did stuff like that come to be? He just released a new book based on the podcast – it's called the 99 Percent Invisible City. The book is an illustrated look at how cities work, and why they work the way they do. Roman Mars joins us to talk about life before podcasting, and what decades in radio has taught him. Plus, the COVID-19 Pandemic has affected the design of cities, and which of those changes might be permanent.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

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