Need help finding a factbook about outsiders

[Alayah]

Hi everyone! Im in the middle of writing an assignment about outsiders, and for this I need two books to read. I had found two good ones but one of them is not available in my country. So I was wondering if any of u have any good suggestions to a book about that subject?😊 Also if you’re wondering about the book I had picked out, it was The outsider by Colin Wilson.