I'd need help for my would-be thesis. The topic is not that concrete yet, all I know is that I'd like to write something related to Global English. I'm not even sure of how I should approach it. So technically, I have a huge topic and nothing else. I would really appreciate if you could give me tips on how to narrow it and/or name some sources that can be useful. Currently I'm reading David Graddol's English Next. It's a really interesting book, but I don't think it'll be very useful, as I'm curious about the linguistic part not the economic and such things. I haven't finished it though. The other source my tutor gave me was Varieties of English (the relevant parts).
Thanks for any help in advance. :)