Books: The Fathers vs Church Fathers

Does anyone know the difference between these two books by Pope Benedict XVI? I believe one’s published by OurSundayVisitor, and the other by Ignatius Press. From what I can gather, they sound like they’re essentially the same, but I really don’t know for sure. I’d love some help if anyone knows about the books; I’m trying to decide which one to buy. Thanks!
~Angela

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