It’s 1960, and the Axis powers dominate the world. Life goes on, because, as we see in “Escape to Other Worlds with Science Fiction,” history is driven both by big events and by small temptations…Following the appearance of her first two novels, The King’s Peace and The King’s Name, Jo Walton won the 2002 John W. Campbell Award for Best New Writer. Two years later she won the World Fantasy Award for Tooth and Claw. Her Small Change trilogy, comprising Farthing, Ha’penny, and Half A Crown, is set in a world in which Britain struck an early truce with Hitler in 1941; “Escape to Other Worlds with Science Fiction” is set in the America of that world.