as salaam alaikum

i am researching more about orientalism, i have read the piece on the main page and other articles and such but I want to have a much better understanding of orientalists. In particular i want to know about Marmaduke Pickthall because I do not know if I trust his work. I have read some of his stuff and he believes that Muslim women should not wear hijab and that it is an Indian custom not Islamic.

jazakallah khair