This sampler is like a tasting menu of Proko's best offerings. It includes lessons from:
A: You can watch many free videos on YouTube without an account. To access the "Proko Course Sampler" and track your progress, you will need to create a free account on proko.com, which requires an email address.
Here is the exact roadmap of free lessons you should watch in order.
Which of the 5 pillars are you most interested in starting with? Intro to Drawing Basics