The Old Testament has 39 books that all denominations of Christianity consider canonical. Certain churches, such as the Catholic and Eastern Orthodox churches, regard additional books as being part of the Old Testament.
The base 39 books of the Old Testament in order are Genesis, Exodus, Leviticus, Numbers, Deuteronomy, Joshua, Judges, Ruth, two books of Samuel, two books of Kings, two books of Chronicles, Ezra, Nehemiah, Esther, Job, Psalms, Proverbs, Ecclesiastes, Song of Songs, Isaiah, Jeremiah, Lamentations, Ezekiel, Daniel, Hosea, Joel, Amos, Obadiah, Jonah, Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah and Malachi.
The first five of these books tell the story of Israel from the creation of all things in Genesis until the death of Moses. These books are collectively regarded as the Torah and are followed by the Jewish people.
The six books that follow were originally one work referred to as the Deuteronomistic history. They tell the story of the history of Israel.
The two books of Chronicles and the Ezra and Nehemiah books that follow them have a number of similarities and connections to one another, but were written by different authors.
The remaining works of the Old Testament are collectively known as history or wisdom books.