These quick onboarding videos show you how to do things Composer Pro. From adding components to integrating with a REST API. They are also found on Composer Pro platform itself, from the bottom bar.
Part 1 - Intro to Composer Pro
Part 2 - Logic & Flow functions
Part 3 - Variables
Part 4 - Data resources & REST
Part 5 - Formulas
Once you're done with the basics, check out Power-ups for quick tips and useful patterns and Core Lessons for more in-depth understanding of Composer Features.