I opened it today:

I used Pen name for published book in amazon.

https://www.amazon.co.jp/Basic-Computer-Graphics-Theories-Republished-ebook/dp/B07MXHL6PV/
I used Java as Coding for Basic Rendering Program:
Mail: computergraphics.abjmptm@gmail.com

youtube: https://www.youtube.com/watch?v=BKTyeNcSNHI
Adam.T.Bach: My Pen name

List of Pen name:
Wikipedia: https://en.wikipedia.org/wiki/List_of_pen_names

I respect all of people who has pen name as writers..