When George Eliot wrote "don't judge a book by it's cover' in the Mill on the Floss in 1860, it is certain she did not know just how strange a relationship we would have to her enduring idiom 160 years later. Open the book on a journey through the history and importance of cover design from clay tablets to jewel-encrusted tomes to open-shirted men - we find out why we're still absolutely judging books by their covers.