What are the divisons of the books of the New Testament?

The Gospels: Matthew, Mark, Luke, and John

The History of the Holy Spirit and the Early Church: The Acts of the Apostles

The Epistles: Romans-Revelations

Another Answer:

Some have suggested four main sections as follows:

1 - The Gospels and Acts

2 - The Pauline Epistles

3 - The General Epistles

4 - Revelation