Atlassian design

Material Design is a visual language that synthesizes the classic principles of good design with the innovation of technology and science.

Resources, tooling, and design guidelines for building interfaces with GitHub’s design system.

590 Website Style Guide Resources

知名语言学习工具

Invision 的项目，已发布多本设计相关电子书籍，推荐阅读，质量上程。

收集了大量的优秀产品的设计体系、样式库，从优秀的体系化设计中获得灵感。