Summa Theologiae Books in Order

1. 1 Summa Theologiae: Volume 1, Christian Theology: 1a. 1 (Latin and English Edition) Aquinas, Thomas Book 1
2. 3 Summa Theologiae: Volume 3, Knowing and Naming God: 1a. 12-13 (Summa Theologiae (Cambridge University Press)) Aquinas, Thomas Book 3
3. 5 Summa Theologiae: Volume 5, God's Will and Providence: 1a. 19-26 (Summa Theologiae (Cambridge University Press)) Aquinas, Thomas Book 5
4. 6 Summa Theologiae: Volume 6, The Trinity: 1a. 27-32 (Summa Theologiae (Cambridge University Press)) Thomas Aquinas Book 6
5. 8 Summa Theologiae: Volume 8 (1a. 44-49)(St Thomas Aquinas Summa Theologiae) Thomas Aquinas Book 8
6. 10 Summa Theologiae: Volume 10, Cosmogony: 1a. 65-74 (Summa Theologiae (Cambridge University Press)) Thomas Aquinas Book 10
7. 11 Summa Theologiae: Volume 11, Man: 1a. 75-83 (Summa Theologiae (Cambridge University Press)) Aquinas, Thomas Book 11
8. 12 Summa Theologiae: Volume 12, Human Intelligence: 1a. 84-89 (Summa Theologiae (Cambridge University Press)) Aquinas, Thomas Book 12
9. 15 Summa Theologiae: Volume 15, The World Order: 1a. 110-119 Thomas Aquinas Book 15
10. 18 Summa Theologiae: Volume 18, Principles of Morality: 1a2ae. 18-21 (Summa Theologiae (Cambridge University Press)) Aquinas, Thomas Book 18
11. 19 Summa Theologiae: Volume 19, The Emotions: 1a2ae. 22-30 (Summa Theologiae (Cambridge University Press)) Aquinas, Thomas Book 19
12. 22 Summa Theologiae: Volume 22, Dispositions for Human Acts: 1a2ae. 49-54 (Summa Theologiae (Cambridge University Press)) Thomas Aquinas Book 22
13. 23 Summa Theologiae: Volume 23, Virtue: 1a2ae. 55-67 (Summa Theologiae (Cambridge University Press)) Thomas Aquinas Book 23
14. 24 Summa Theologiae: Volume 24, The Gifts of the Spirit: 1a2ae. 68-70 (Summa Theologiae (Cambridge University Press)) Aquinas, Thomas Book 24
15. 27 Summa Theologiae: Volume 27, Effects of Sin, Stain and Guilt: 1a2ae. 86-89 (Summa Theologiae (Cambridge University Press)) Aquinas, Thomas Book 27
16. 30 Summa Theologiae: Volume 30, The Gospel of Grace: 1a2ae. 106-114 (St Thomas Summa Theologiae, 30) Aquinas, Thomas Book 30
17. 31 Summa Theologiae: Volume 31, Faith: 2a2ae. 1-7 (Summa Theologiae (Cambridge University Press)) Aquinas, Thomas Book 31
18. 32 Summa Theologiae: Volume 32, Consequences of Faith: 2a2ae. 8-16 (Summa Theologiae (Cambridge University Press)) Aquinas, Thomas Book 32
19. 42 Summa Theologiae: Volume 42, Courage: 2a2ae. 123-140 (Summa Theologiae (Cambridge University Press)) Aquinas, Thomas Book 42
20. 55 Summa Theologiae: Volume 55, The Resurrection of the Lord: 3a. 53-59 (Summa Theologiae (Cambridge University Press)) Thomas Aquinas Book 55
21. 60 Summa Theologiae: Volume 60, Penance: 3a. 84-90 Aquinas, Thomas Book 60

Reading order is taken from the volume numbers in each book's title. Where a volume number is missing from a title, that book sorts by title and may be out of place.