Quick answer: Visit the Augustine Institute or Catholic Market websites to purchase books and materials.
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The Augustine Institute and Catholic Market offer a wide selection of Catholic books, studies, and faith resources available for purchase online.
Within the Amen app, the Daily Mass Readings use the RSVCE Second Catholic Edition translation of Scripture. Bible in a Year uses the Augustine Institute’s ESVCE translation, published in 2020.
You can find more information about these resources on the Augustine Institute website.