Philip Larkin's Letters to Monica span the forty years of their relationship from 1946 when they met, until Larkin's death in 1985. They only came to light after Monica Jones died in 2001, when nearly two thousand letters were discovered in Larkin's house in Hull. This never previously published correspondence, edited by Anthony Thwaite, offers a unique insight into Larkin's most intimate thoughts. Episode 4: Larkin works on his poem about 'An Arundel Tomb' which he first saw with Monica and ponders the nature of their relationship. Read by Hugh Bonneville, who recently appeared in Downton Abbey and BBC TV's The Silence and played Larkin in Love Again on BBC 2. It was abridged by Miranda Davies and produced by Lucy Collingwood. Letters to Monica is published by Faber and Faber.