Tree of Smoke the name given to a 'psy op' that might or might not be hypothetical and might or might not be officially sanctioned is Denis Johnson's most gripping, visionary and ambitious work to date. Set in south-east Asia and the US, and spanning two decades, it ostensibly tells the story of Skip Sands, a CIA spy who may or may not be engaged in psychological operations against the Viet Cong -- but also takes the reader on a surreal yet vivid journey, dipping in and out of characters' lives to reveal fundamental truths at the heart of the human condition. 'A Catch-22 for our times' Alan Warner, Books of the Year, Observer 'The God I want to believe in has a voice and a sense of humour like Denis Johnson's' Jonathan Franzen 'An epic of drenched sensuality and absurdly chewable dialogue, as though Don DeLillo and Joseph Heller had collaborated on a Vietnam war novel' Steven Poole, Books of the Year, New Statesman