I just found incidentally this interesting document about Unicode code charts; still a draft, I believe it is new in Unicode 18.0...

🔗 https://www.unicode.org/Public/draft/charts/About.html

And of course, there is chapter 24 of the outstanding "Core Spec": About the Code Charts.

🔗 https://www.unicode.org/versions/Unicode18.0.0/core-spec/chapter-24/

#Unicode #CodeCharts #CoreSpec