AI introduction – most people are already using AI systems everyday without realizing it. People use AI systems today without even knowing it — to be roused, to call up local weather report, to purchase a gift, to secure your house, to be alerted to an upcoming traffic jam, and even to identify an unfamiliar song. To help unwrap some of the mystery, Facebook created a series of educational online videos that outline how AI works. We hope these simple and short introductions will help everyone understand how this complex field of computer science works.