Sven the reindeer and Olaf the snowman have a big problem! They're creating a new TypeScript library, and they want to give their users the best possible experience. They know that TypeScript has incredible powers (they're almost magical! 💫), but they don't know exactly how to use it to its full potential.

What is `unknown`? How is it different from `any`? How do you use `infer`? What are conditional types? Unions and Intersections?! It's all too much...

Thankfully Elsa, beloved Queen of Arendelle is a TypeScript master, and along with her sister Anna, they *love* to teach others all about type magic.

Come along with Elsa, Anna, Olaf and Sven, and they learn all about advanced TypeScript typing by going INTO THE UNKNOWN 🎶❄️🎵