The theme of 'Alice through the Looking Glass' is the difference between the real world and the world behind the mirror. In keeping with this theme there is a contrast between the unlit mirrored piece and the clear glass piece. Each unlit mirrored piece is a smooth and modern shape. Each lit piece is clear glass, with the negative shape of a traditional, delicate Staunton chess piece enclosed within it. In the book the White Knight talks about how he thinks better when he is upside down. In a reference, the White Knights in the set only work when they are placed upside down. This joke is hidden to all but those who know the background of the chess set
The Chessboard is made out of LightPoints a material manufactured by Schott, which is glass that has LED's embedded in it; the pieces are coated with Mirona, a Material that turns transparent when light shines through it. When the piece is placed on the board it completes the circuit and lights up the LED under it turning it transparent, like magic.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.