The canonical biography of the great American author Henry David Thoreau. Two hundred years have passed since the birth of Henry David Thoreau, an author who, however, is more alive than ever. Surely because his writings are perfectly intertwined with many of our current interests and concerns: the global ecological challenge, the fight against unjustified consumerism, the legitimacy of insubordination in the face of unjust governments or laws or the search for a simpler and more autonomous life. . However, Thoreau once said: "My life is the poem I would have liked to write." Nothing could be more true, because beyond his texts, which we never stop reading, there is no doubt that his own life equally fascinates his countless readers.