This book has been posted on hn before and it’s worth reposting. Highly recommended as a pragmatic and comprehensive guide for principles of UI design. Note that it doesn’t contain any code; it’s purely focused on conceptualising the interface design process.
The code portion of the book can be found at Tailwind UI. I personally have the Application UI license, and I'm going to upgrade to full access soon. It's 100% worth the cost if you are building out component libraries and repeatable work.
