Transworld is a British publishing house in Ealing, London that is a division of Penguin Random House, one of the world's largest mass media groups. It was established in 1950 as the British division of American company Bantam Books.
It publishes fiction and nonfiction titles by various best-selling authors including Val Wood under several different imprints. Hardbacks are published under either the Doubleday or the Bantam Press imprint, whereas paperbacks are published under the Black Swan, Bantam or Corgi imprint.