Sacrosanctum Concilium has been the cause of more controversy than perhaps any other document of the Second Vatican Council, since it initiated a liturgical reform more radical than any in recent Church history.

First published in 1891, Pope Leo XIII's "Rerum Novarum" was the Church’s bold response to the upheaval caused by the Industrial Revolution. Since being elected Pope in May 2025, Pope Leo XIV has spoken movingly about how this document shaped his understanding of the Church’s mission in the world, especially in light of today’s rapid technological and economic changes.

Your questions answered about buying from CTS, and other ways you can get involved in our work.

Your questions answered about buying from CTS, and other ways you can get involved in our work.

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