Philip Larkin was a member of poet group, The Movement, which rejected the intellectual elitism of the modernists and the Bloomsbury Group in favour of a more rational and ironic form of verse. They published their work in a highly influential anthology called New Lines. Larkin's reputation has best stood the test of time.
His poems are about the routine of daily life in modern urban Britain. He in no way romanticises the lives of quiet desperation that are led by many people as they go about their daily business. He uses frank, colloquial language to get his often pessimistic message across.
He simply observes and wittily comments on the world around him, unlike modernists.