Law:
Genesis, Exodus, Leviticus, Numbers, Deuteronomy

Prophets:
Joshua, Judges, 1-2 Samuel, 1-2 Kings

Isaiah - Jeremiah - Ezekiel

Hosea - Joel - Amos - Obadiah
Jonah - Micah - Nahum - Habakkuk
Zephaniah - Haggai - Zechariah - Malachi

Writings:
Psalms, Proverbs, Job

Song of Solomon, Ruth, Lamentations, Esther, Ecclesiastes

Daniel, Ezra-Nehemiah, 1-2 Chronicles

Sources

Commentaries

Charles Simeon, Devotional and Practical Commentaries.

John Calvin, Commentaries.

John Gill, Commentaries.

John McFadyen, Introduction to the Old Testament.

Sermons

Charles Spurgeon, Sermons.