Earlier this month, the short list was announced for the “Winner of Winners” award, drawn from the previous 24 winners of the annual Baillie Gifford Prize for non-fiction. Among the six titles is Nothing to Envy: Real Lives in North Korea, in which Barbara Demick — who was based as a journalist in South Korea — talks to  defectors about love, family life and the terrible cost of the 1990s famine. Demick told Tom Sutcliffe in Front Row on Radio 4 yesterday that the book was “a work of obsession and frustration”.