From its beginnings, the Church has presented itself as a human phenomenon that carries the divine within it. As a social fact, its reality given form by men and women, the Church has always affirmed that its existence surpasses the human reality of its components and that it stands as the continuation of the event of Christ's entry into human history. Why the Church?, the final volume in McGill-Queen's University Press's trilogy of Luigi Giussani's writings, explores the Church's definition of itself as both human and divine and evaluates the truth of this claim.