Romano Guardini is a 20th-century theologian who antipicated Vatican II's commmitment to read the signs of the times. The author introduces readers to Guardini's pastoral leadership in this book, particularly in the liturgical and youth movements.

"The Spirit of Catholicism" is a brilliant and widely influential reflection on the fundamental nature of the Catholic faith and the Catholic Church. First appearing in 1924, this is a truly pioneering work of Catholic theology, one that had a major influence on subsequent theology.

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.