During the twentieth century, humankind has managed to do the impossible: we have brought famine, plague and war under control. Today, more people die from obesity than from starvation; more people die from old age than from infectious diseases; and more people commit suicide than are killed in war. We are the only species in earth's long history that has single-handedly changed the entire planet, and we no longer expect any higher being to shape our destinies for us. As Homo sapiens becomes Homo deus, what new destinies will we set for ourselves? As the self-made gods of planet earth, which projects should we undertake, and how will we protect this fragile planet and humankind itself from our own destructive powers? In this vivid, challenging new book, Yuval Noah Harari examines the implications of our newly acquired divine capabilities, from our desperate pursuit of happiness to our dogged quest for immortality. He explores how Homo sapiens conquered the world, our current predicament and our possible futures. And, above all, he asks the fundamental questions: How do we avoid destruction, and what new world should we create? What do we want to become?