Books on prayer:

Treatise on Prayer and Meditation by St. Peter of Alcantara
https://www.tanbooks.com/index.php/treatise-on-prayer-and-meditation-full-of-saintly-counsels-on-prayer.html

In Silence with God by Benedict Bauer
https://smile.amazon.com/Silence-God-Benedict-Baur/dp/0933932936?ie=UTF8&tag=ththve-20&link_code=btl&camp=213689&creative=392969

An Introduction to the Devout Life by St. Francis de Sales

Prayer in the Home:

The Little Oratory by David Clayton and Leila Lawler
https://www.sophiainstitute.com/products/item/little-oratory

Quotes about prayer:

1 Thes. 5:16-18: “Rejoice always, pray constantly, give thanks in all circumstances; for this is the will of God in Christ Jesus for you.”

“[P]rayer is more / Than an order of words, the conscious occupation
Of the praying mind, or the sound of the voice praying.” T.S. Eliot, “Little Gidding” 1, from Four Quartets.
http://www.columbia.edu/itc/history/winter/w3206/edit/tseliotlittlegidding.html

“The wonder of prayer is revealed beside the well where we come seeking water: there, Christ comes to meet every human being. It is he who first seeks us and asks us for a drink. Jesus thirsts; his asking arises from the depths of God’s desire for us. Whether we realize it or not, prayer is the encounter of God’s thirst with ours. God thirsts that we may thirst for him” (Catechism of the Catholic Church n. 2560).
http://www.vatican.va/archive/ENG0015/__P8Z.HTM

“For me, prayer is a surge of the heart; it is a simple look turned toward heaven, it is a cry of recognition and of love, embracing both trial and joy” (St. Therese of Liseux, Manuscrits autobiographiques, C 25r, cited at CCC 2558).
http://www.vatican.va/archive/ENG0015/__P8Z.HTM