Found in 1 comment on Hacker News
totetsu · 2020-06-30 · Original thread
It kind of reminds me of the genre of study material in Japan that personifies everything as a cartoon character. Here is the periodic table as little figures https://resemom.jp/article/img/2017/03/16/37127/162618.html

and this book is it as Manga girls.

https://www.amazon.co.jp/%E5%85%83%E7%B4%A0%E5%91%A8%E6%9C%9...

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