Libra is a novel written by an American essayist whose works have covered the advent of what?
Libra (novel): Libra (1988) is a novel written by Don DeLillo. Don DeLillo: Donald Richard "Don" DeLillo (born November 20, 1936) is an American novelist, playwright and essayist. Don DeLillo:  His works have covered subjects as diverse as television, nuclear war, sports, the complexities of language, performance art, the Cold War, mathematics, the advent of the digital age, politics, economics, and global terrorism.
the digital age