The book “Platform Firmware Security Defense for Enterprise System Administrators and Blue Teams“, which Paul English of PreOS security wrote, introducing the concept of firmware security for the system administrator audience:
https://preossec.com/Newsletter-Q3-2018/
https://preossec.com/products/ebook-download
has been translated to Chinese, by the GNU Hardened Linux project!
more info:
https://hardenedlinux.github.io/