Ask HN: Best design course(s) for people who already know programming?

Hello!

Does anyone know any good Web/mobile design courses that are aimed at people who are already programmers? Almost everything I've seen out there is about the basics of HTML, CSS, and JS, etc. but after several years doing Web, I already know the ins and outs of that.

What I'm interested in is learning the basics and theory behind designing user interfaces, UX, etc.

Obviously there's only so much I can learn without a design degree, but anything is better than nothing.

Thanks in advance.