J.R.R. Tolkien wrote letters to his children from Father Christmas every year for 23 years. And they're filled with elves, goblins and playful polar bears.
Tolkien and Zamenhof are two of imaginary languages' most successful proponents – yet their aims were very different.
'Winter is Coming' and 'All Men Must Die' are Game of Thrones' watchwords. But do they offer clues to an ending for the show – and the books?
Quenya, Sindarin, Klingon and Dothraki – there's an art to making up languages.
J R R Tolkien died over 40 years ago and since then there have been over 30 titles bearing his name. Is this warranted?