The British Migration
I don't know much about the migration of Caribbean people to the U.K., but this book seems to be a powerful resources for explaining the experience. It is called "Tracing Jamaica's Migration Process."
From the outside it seems to be very different from the American experience, in ways that I can't quite distinguish at the moment.
Interestingly, I am yet to find a novel that relates to the experience of Jamaicans in the U.S. -- if it exists, please let me know. Andrea Levy is the definitive author when it comes to the British-Jamaican migration experience and I long for an author who will do the same for the North American migration of the 1970's onwards.