Hi.
My name is Steve Collins and I have been teaching English in London for twenty years. I'm not sure, but my book Practical Everyday English with CD will be able to help you if your level is upper intermediate or advanced. It is particularly useful for those wishing to be fluent in British English conversation. Please contact english forums for details of my email address and website. I do not sell the book personally but it is available on all Amazon sites.
Good luck