How are Paul's epistles arranged in the New Testament?

In their original order, the Catholic or Universal epistles followed the Book of Acts. These 7 began with James and ended with Jude. However, the Roman Church pushed these 'General Epistles' behind what became known as the Pauline Epistles, listing Romans as first - giving the appearance of superiority to some.

Paul is sometimes credited with authorship of 14 Epistles(letters), however, there is significant evidence that the Book of Hebrews was written by Timothy while Paul was in prison. The ending of Hebrews was probably written by Paul after his release.

The first 9 Epistles of Paul are to the newly formed Churches. The last 4 are addressed to ministerial/professional leaders. This leaves Hebrews out of the list. Romans, Corinthians, and Galatians are referred to as the 'ABCs' of doctrine while Ephesians, Philippians, and Colossians are considered the 'XYZ' with advanced doctrine for the mature Christian. Thessalonians deals with end-times. And if considering Hebrews, it has a millennial theme along with Temple symbolism.

After Jude comes Revelation dealing with future prophecy.