Ender's World: Fresh Perspectives on the SF Classic Ender's Game - Orson Scott Card
A great read for anyone who's ever loved Ender's Game, for anyone who wonders why Ender's Game is often considered "such a big dead", and for anyone who needs proof that science-fiction can be more than just fluff entertainment. Fascinating range of insights and discussions are covered in the essays, plus questions answered by Orson Scott Card.