A century ago, a man with a double life published one of the most celebrated, anthologised and dissected poems in English literature. TS Eliot spent six days a week at the offices of Lloyds bank and crammed the business of poetry and literary criticism into the evenings and Sundays. This allowed him to write The Waste Land, a densely allusive work that drew on Ovid, Dante, Shakespeare, Jacobean tragedy, tarot and the Upanishads to create a dazzling portrait of both the ruins of postwar Europe and the inner alienation of modernity. But it was not, as Matthew Hollis’s captivatingly exhaustive...