Bible Doctrines are divided up into nine major categories for connivence. This will be a resource tool for the Bible teacher who can project an image directly from his computer in PowerPoint. A few related topics to the main doctrine are occasionally added for more clarity. The perspective of the author is a firm conviction in the authority and infallibility of God's written Word as the basis for all doctrines.
Fanning, Don, "Eschatology -- Tribulation Period" (2009). Bible Doctrines. 12.