This three-book set by bestselling authordon MiguelRuiz offers his most widely acclaimed works: ''The Four Agreements ''reveals the source of self-limiting beliefs that rob us of joy and create needless suffering. ''The Mastery of Love'' illuminates the fear-based beliefs and assumptions that undermine love and lead to suffering and drama in our relationships. ''The Voice of Knowledge ''reminds us of a profound and simple truth: The only way to end our emotional suffering and restore our joy in living is to stop believing in lies -- mainly about ourselves.