Howard Jacobson, who turns 80 this year, published his first novel aged 40. Since then he has produced roughly a book every two years, including The Finkler Question, which won the Man Booker in 2010. Given that he was put on Earth to write, why the wait? This is the subject of Mother’s Boy, a tale of self-persecution in the form of a monologue which includes interjections from the ghosts of his parents and one chapter, recording a period in his twenties that he drifted through in a dream state, printed in a font resembling handwriting.