Christology, as it sounds, is the study of Christ.
There are two primary types of Christology; Low Christology, and High Christology
High and Low is not to mean High is better than Low.
High describes the Divine Nature of Christ; Low describes the Human Nature of Christ.
The Gospels are good examples of High and Low Christology.
The synoptics (Mark, Matthew, and Luke) are examples of Low Christology. Although, there is no denying the divinity of Jesus, these evangelists emphasize Jesus the Teacher, Preacher, Philosopher, Prophet, Rabbi, Physician, etc.
John’s Gospel focuses on Christ as the Divine.
The High and Low Christology is most apparent when looking at the genealogy of Jesus in Matthew and Luke, where Jesus is traced through human generations (Matthew from Abraham to Jesus; Luke Jesus to Adam ((albeit, then to God), and John’s stunning 1:1 puts Jesus, the Logos (Word) with the Father before all time (certainly before the incarnation).
The Catholic view on Christology? Jesus possesses both natures; human (with the exception of sin), and divine. He is man, and he is God; as John says, “The Word made flesh” that dwelled among us.
Peace and all good!