Shaun Bythell lives in Wigtown, Scotland, where he runs The Bookshop - the largest second hand bookshop in Scotland. It contains over 100,000 books, spread over a mile of shelving along twisting corridors. In his book, Diary of a Bookseller, Bythell chronicles a year in the life of his bookshop - painting, with grumpy good humour, often unflattering pictures of customers and those who come to browse and not spend. But Bythell saves his real anger for the big online booksellers who dominate the market and drive small enterprises like his into the ground.