Learn what Vue is, how to set up a Vue project via static HTML or Vue Cli, and how to make a complete CRUD app in Vue. You'll learn about Vue components, data, methods, computed methods, lifecycles, conditionals, events, form handling, and building. If you go through and do this whole tutorial, you should feel pretty good starting to build your own apps from scratch in Vue.
Tania's tutorials are always top-notch. If you're looking to pick up Vue, this is an excellent place to start.