The First Book of Philosophy
from Introduction to Philosophy
The First Book of Philosophy
https://twitter.com/nishio/status/1170164552433975296?s=21
I think that recommending "a translation of a book written by a foreign expert who tries to propose a novel concept to his field" as a first book does not fit your needs. Kitaro Nishida's Introduction to Philosophy, the transcript of a lecture given by a Japanese philosopher to university undergraduates, is available in PDF format.
Philosophy books and code reading
In other words, it is like "reading the source code of widely used open source software at the time it was first released by the author.
It's useful, for example, the first commit in Git is easier to understand the essence of the idea because there are no details added afterwards.
I don't know, but how about letting a beginner in programming read it?
---
This page is auto-translated from /nishio/最初の一冊の哲学書. If you looks something interesting but the auto-translated English is not good enough to understand it, feel free to let me know at @nishio_en. I'm very happy to spread my thought to non-Japanese readers.