Paul wrote a number of books throughout his life. This discussion is to identify the 13 books he wrote and discuss the main topics of each book.Paul wrote a total of 13 books in his lifetime, including "The Acts of the Apostles," "Romans," "1 Corinthians," "2 Corinthians," "Galatians," "Ephesians," "Philippians," "Colossians," "1 Thessalonians," "2 Thessalonians," "1 Timothy," "2 Timothy," and "Titus." Each of these books contains a unique message, but all of them are united in the common theme of God's love and grace for humanity. Through these books, Paul addressed topics such as salvation, faith, righteousness, and the church. We can learn a lot about Paul's beliefs and teachings by studying these books.