It seems like there is very little pirated content for schools (textbooks) in the piracy scene. Here in Germany, e-books are becoming normal in education.
So I ask you, especially the Germans among you, if you know of resources for pirated textbooks used in schools and if you are interested in such.
Such books as PDFs are actually useful, as you might imagine, since proprietary apps (several) are standard.
Did you check https://Annas-archive.org/ ?
Yes I did, right before posting. Looked again and found one that could be useful in the future. But still veery limited (edit: in terms of these textbooks). Thanks though.