Of all the prophets, Daniel alone provides an overview of the successive major world empires and their relationship to Israel, beginning with the Babylonian exile, and concluding with the end of the Roman exile and the arrival of Messiah's Kingdom. Daniel provides much foundational material for Jesus' teaching on the last days. All of these prophecies are merely the working out of God's promises and His threats to the nation of Israel in the Abrahamic Covenant, the Mosaic Covenant, and the New Covenant. Understanding the Covenants is key to understanding Daniel.
The book of Revelation ties together themes found in several Old Testament prophets, particularly Isaiah, Ezekiel, Daniel, and Zechariah. The symbolism found in Revelation cannot be understood correctly in a vacuum, but must be understood based on how the same symbols were used by these ancient prophets to portray events that occurred long ago. Revelation constantly drawns on the prophets, Jesus, and the teaching of the Apostles to paint an abstract portrait of the last days. It is filled with warnings and encouragement for Christians in the coming tribulation.