Beth spent yesterday at a training course held by a major book publisher in London. Whilst she was there, she discovered that the publisher has a staff bookshop, which offers their books at significantly reduced prices. She asked the course supervisor whether she as a visitor was allowed to buy books from the shop and was told yes, as long as she remembered that she had to carry them all home! Needless to say when I picked Beth up on the way home from work her bag was somewhat heavier than when she left…