Peter Pomerantsev takes us to the front lines of the disinformation age—from Kiev to Manilla–where he meets Twitter revolutionaries and pop-up populists, “behavioral change” salesmen, Jihadi fanboys, Identitarians, truth cops, and many others. Forty years after his Ukranian dissident parents were pursued by the KGB, Pomerantsev finds the Kremlin re-emerging as a great propaganda power. His research takes him back to Russia — but the answers he finds there are not what he expected.