As he prepares to leave the post, Andrew Motion talks to James Naughtie about his 10 years as Poet Laureate. He discusses his collection Public Property, which was the first to be published after he became Poet Laureate. Some of the poems were written to mark or celebrate events or people. Others reveal some of his own strongest influences - the countryside, his upbringing and his parents as well as poets he most admires, including Wordsworth, Keats, Ted Hughes and Philip Larkin.