Second this! Refactoring UI has very practical and effective advice for creating web UI's.

Apart from this, I recommend "Learning Web Design" (5th Edition) by Jennifer Robbins. It has a broad sweep and still gives you all the practical tips.

Learning React (2nd Edition) is a good one if you're going to use React.

P.S: I did a similar Ask thread earlier this year where some of these were mentioned - https://news.ycombinator.com/item?id=26932020

Second Robbins’ “Learning Web Design.”

Also, if you’re really a true beginner, also try “HTML and CSS: Visual QuickStart Guide” by Joe Cassabona.

VQS is great because as you’re trying to learn an aspect of code, it includes a text explanation, what the code looks like and what you should expect to see on screen.

Good luck! Have fun! :)

Edit: “Hello Web Design” by Tracy Osborne is good for learning graphic design principles as they relate to the web. If you can get a copy of “The Non-Designers Web Book” by Robin Williams, that one’s excellent, too. It’s old, but the principles still apply.

I cannot recommend Refactoring UI enough. It’s designed for engineers and is a pragmatic mix of first principles and easy tricks.

I think it’s great if you want to be able to bridge the gap between design projects. It’s not going to turn your product into a killer design but it’ll help you make a nice and usable dashboard or add buttons to a surface in your app.

The linked video is a great example of 'show, don't tell'.