In the early days of baseball, sign-stealing was almost like a game within the game. Teams and players would try all kinds of tricks to get a glimpse of what the catcher was signaling to the pitcher. Even with this long history, when the Houston Astros were recently caught stealing signs during their championship season it became a huge scandal.

Sign Stealing

The New York Times Bestseller The 99% Invisible City is on sale now!

This episode is adapted from The Edge, a six-part series hosted by Ben Reiter.

Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. 

Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. 

When we think about carbon storage, we tend to think about forests, but peatlands are also incredible carbon sinks. In Europe, peatlands contain five times more carbon than forests. But back in the 80s, most people didn't know this remarkable fact about peat. If anything, bogs were seen as scary places to be avoided and thus we tended to not take care of them. But that’s changing.

For the Love of Peat

Buy The 99% Invisible City!

Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. 

Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. 

We're excited to celebrate the release of The 99% Invisible City book by host Roman Mars and producer Kurt Kohlstedt with a guided audio tour of beautiful downtown Oakland, California.

In this episode, we explain how anchor plates help hold up brick walls; why metal fire escapes are mostly found on older buildings; what impact camouflaging defensive designs has on public spaces; who benefits from those spray-painted markings on city streets, and much more.

Plus, At the end of the tour, stick around for a behind the scenes look at the book as we answer a series of fan-submitted questions about how it was created, offering a window into the writing, illustration and design processes.

Exploring The 99% Invisible City

Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. 

Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. 

The unlikely battle between the creator of the New York Public Library children's reading room and the beloved children’s classic Goodnight Moon.

Goodnight Nobody

Pre-order The 99% Invisible City

Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. 

Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. 

An address is something many people take for granted today, but they are in fact a fairly recent invention that has shaped our cities and taken on great political importance. Deirdre Mask is the author of The Address Book: What Street Addresses Reveal About Identity, Race, Wealth, and Power, which looks at all the ways the world has changed since the popularization of street addresses during the Enlightenment. The book examines how addresses impact wealth and poverty, and how they serve as proxies for our most contentious debates. Mask also explores a digital future where we aren't reliant on the numbers on our homes to tell us where we are or where we're going.

 The Address Book

Order The 99% Invisible City

Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. 

Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. 

Icons and symbols and signage are all around us, and nowhere more so than on the open road. So for this episode of Ubiquitous Icons: hop in the car with Roman and Kurt for a crash course in roadside signage. We'll learn about the history of the stop sign, the iconic rural mailbox, and the signs that tell you what you'll find at highway exits. This is Highways 101.

Highways 101

Pre-order The 99% Invisible City

Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. 

Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. 

There have been many waves of panic and resistance to new people moving into the public sphere and needing accommodation. And a focus of that panic has often been… public bathrooms. The debate about trans bathroom access became a big national story a little over five years ago after the passage of ordinances in cities like Charlotte, North Carolina, and Houston, TX, which attempted to restrict which bathrooms trans people could or couldn’t use. Many transgender, non-binary, and intersex people risk stress and sometimes physical danger when entering bathrooms that are segregated by sex. But a group of people have devised a design solution that may make bathrooms better for everyone.

Where Do We Go From Here?

Pre-order the The 99% Invisible City

Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. 

Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. 

After the 1970s oil crisis, the global economy went into a recession. American unemployment hit 11 percent. And suddenly, middle-class families didn’t have money for name brands like Coke or Kellogg’s. Consumers wanted cheaper food. In response, supermarkets had to figure out how to make their store brands more appealing. One chain in France, called Carrefour, was developing a discount store brand when they had an idea. Instead of using bright colors, or putting their own name on the box, or using slogans or beautiful photos, their products were brandless. They would include just the name of the food, in black text, on a white background. This minimalist design was a brilliant marketing tool. It delivered the message that the food was cheap, and the savings were being passed down to consumers. Then generic branding spread around the world.

Podcast Episode

Buy The 99% Invisible City

Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. 

Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. 

Winifred Gallagher, author of How the Post Office Created America argues that the post office is not simply an inexpensive way to send a letter. The service was designed to unite a bunch of disparate towns and people under one flag, and in doing so, she believes the post office actually created the United States of America.

This is a rebroadcast from October 2017

The Revolutionary Post

Buy The 99% Invisible City, our first book!

Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. 

Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. 

Before the twentieth century, most Americans rarely came into contact with police officers. But with more and more drivers behind the wheel, police departments rapidly expanded their forces and increased officers’ authority to stop citizens who violated traffic laws. The Fourth Amendment—the constitutional protection against unreasonable searches and seizures—did not effectively shield individuals from government intrusion while driving. Instead, jurists interpreted the amendment narrowly. In a society dependent on cars, everyone (the law-breaking and law-abiding alike) would be subject to discretionary policing. Sarah Seo's remarkable book Policing the Open Road shows how procedures designed to safeguard us on the road actually undermined the nation’s commitment to equal protection before the law.

Policing the Open Road

Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. 

Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.