Today’s episode of Stuff I Learned Yesterday is a Friday Flashback. Friday Flashback episodes will feature some of the most popular episodes of Stuff I Learned Yesterday. Today we take a trip back to an episode that first featured Derek Olsen as a guest host. It’s an episode that includes a very humorous story about the importance of communication. It’s Stuff I Learned Yesterday Episode 63-The Prom Invitation Mystery. Read More...