The Outsider by Albert Camus
Albert Camus' laconic masterpiece about a Frenchman who murders an Arab in colonial Algeria is famous in its time for diagnosing a state of alienation and spiritual exhaustion which summed up the mood of the mid-twentieth century. Today, more than fifty years after its first appearance, we can see that this early success was no passing fashion: The Outsider continues to speak to us of ultimate things with the force of a parable and the excitement of a thriller and remains one of the most widely read and influential classics of the century.