I really enjoyed the course LearnUI by Erik Kennedy. Id actually argue that this was one of the best educational resources that I've ever used, including college. After each lesson, he dishes out a design assignment that forces to use what you've learned. I've also heard good things about Shiftnudge, but haven't taken it myself. UI helped make my portfolio look more professional. - Source: Reddit / about 1 month ago
Unfortunately, enrollment is closed until mid to late 2021. You can sign up to get notified by email when it's open. - Source: dev.to / 24 days ago
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