Mark Forsyth 's The Etymologicon was a Sunday Times Number One Bestseller and his TED Talk 'What's a snollygoster?' has had more than half a million views. He has also written a specially commissioned essay 'The Unknown Unknown'__ for Independent Booksellers Week and the introduction for the new edition of the Collins English Dictionary. He lives in London with his dictionaries, and blogs at blog.inkyfool.com.