This week we\u2019ve got a trio of Costa Prize winners
\n\n\nCosta Book of the Year winner Bart van Es introduces us to his biography of \u2018The Cut-out Girl\u2019. (Starts at 2.00)
\n\n\nHilary McKay reveals which real-life character inspired her children\u2019s book \u2018The Skylark\u2019s War\u2019. (Starts at 22.30)
\n\n\nAnd poet J O Morgan considers the 4-minute warning in his cold-war epic \u2018Assurances\u2019. (Starts at 39.00)