John Newton is most famous for writing "Amazing Grace", a hymn widely considered one of the most beloved and popular Christian hymns in the English language.
He also wrote:
* "The Olney Hymns" (co-written with William Cowper)
* "Authentic Narrative of the Life of John Newton" (his autobiography)
* "Letters on Religious Subjects"
* "Cardiphonia"
* "A Review of Ecclesiastical History"
Newton's writings were often influenced by his own experiences, particularly his time as a slave trader and subsequent conversion to Christianity. His works explored themes of faith, redemption, and the power of God's grace.
It's important to note that "John A Newton" isn't a recognized author. If you have another author in mind, please provide more context or information.