Answer:
The Epistles
Of the 27 books in the New Testament, 21 are epistles, or letters, many of which were written by Paul. The names of the epistles attributed to him are Romans; I and II Corinthians; Galatians; Ephesians; Philippians; Colossians; I and II Thessalonians; I and II Timothy; Titus; and Philemon.
