Cardinal Walter Kasper's contributions to theology, ecumenism, Jewish-Christian relations, and the pastoral life of the church have shaped Catholicism in the twentieth and twenty-first centuries. Acknowledging this, Pope Francis has praised Kasper's "profound and serene" theology.

In The Theology of Cardinal Walter Kasper: Speaking Truth in Love, leading theologians from across the United States and Canada explore the full scope of Kasper's thought on topics such as the character of ecumenical and interreligious dialogue, Christology, theological method, and the nature of the church-world relationship. Kasper himself presents four previously unpublished texts: on the interpretation of Vatican II, on forgiveness, on Christian hope, and on the approach to theology today.

This volume originated at a conference, at which Kasper was an active participant, in honor of his eightieth birthday. It provides an introduction to Kasper's thought and also an overview of major issues in contemporary Catholic theology.