Mariella Frostrup talks to the Canadian Booker prize winning author Margaret Atwood about her latest book "In Other Worlds. Award winning short story writer Helen Simpson joins Margaret Atwood to discuss the challenge of making issue based fiction readable.And as Haruki Murakami's epic trilogy 1Q84 is published in English simultaneously in America and the UK, writer Hari Kunzru considers whether it lives up to the hype.