While I couldn't find a downloadable PDF version of the book, I can provide some insight into what the book covers, as well as some theoretical and practical aspects of manga creation.
A very specific request!
For those who may not know, "Araki Manga in Theory and Practice" is a book written by Hirohiko Araki, a renowned Japanese manga artist, best known for his works such as "Kingdom," "Doctor Stone," and especially "JoJo's Bizarre Adventure." araki manga in theory and practice pdf