I recently started following author of this article on Twitter, he shares a lot of tips/tricks/insights about UI, visual design, etc. Highly recommended. And you will more articles like this on his website. He should add navigation to article pages, though.
https://anthonyhobday.com/sideprojects/
https://anthonyhobday.com/sideprojects/visualtechniques/
https://twitter.com/hobdaydesign