IELTS Resources

[simon]

Hi there,
I have been asked by an acquaintance if I could help him prepare for the spoken element of the IELTS test. Although I do have a background in teaching English, I was hoping that someone would be able to suggest a good teaching resource book for this test. I'm looking for something which outlines the (spoken) test structure and marking criteria in a little more detail and also contains some specific subject and question examples.

Thanks in advance,
Simon