France’s book of the year is….

Forty-year-old French writer Nicolas Mathieu has been anointed France's 2018 prince of literary fiction. His second book “Leurs enfants après eux” - a phrase from the Bible which translates as “Their children after them” - has been awarded the country's highest literary honour; the Goncourt Prize. Cathie Clifford speaks to Eve Jackson about the book, the author and the significance of winning.