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.
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.