Thank you, it is for my son, he managed to get 4 interviews last year but unfortunately no offers. He is hoping that he has some in person interviews this year and he is starting his prep now. He works in a local hotel so normally wears a shirt / tie / waistcoat so feels comfortable enough in a tie. He has the amazon book mentioned and is going to practice in front of a mirror and with family but we will try to find someone who he does not know so well.
He also volunteers at a local hospice so i am hoping someone there may be able to assist. Do you have any other tips please?