What information is contained in series of books called "The Papal Teachings" by The Benedictine Monks of Solesmes?

I was shopping for a beer stein from the American Chesterton Society store (shameless plug or context, you tell me :) ) and I noticed a few books in one of the pictures advertising it. I found them on used [in this link](https://www.amazon.com/s?i=stripbooks&rh=p_27%3AThe+Benedictine+Monks+of+Solesmes&s=relevancerank&text=The+Benedictine+Monks+of+Solesmes&ref=dp_byline_sr_book_1) They're called - Papal Teaching: The Holy Rosary - Papal Teachings: The Liturgy - Papal Teachings: The Lay Apostolate other works appear to be - Papal Teachings: The Human Body - Papal Teachings: Directives maybe a few others. Just wondering what is in those books. Lots of people come to this website asking for "What does the Church teach about X" and I can't offer them much more than a google site search of vatican.va. I'm guessing that's just barely scratching the surface. Are these an authentic representation of magisterial teaching on subjects that are go deeper than the Catechism?