Zechariah consists of a combination of exhortations (sermon material), prophetic-apocalyptic visions, and oracles concerning eschatological salvation. Some of the oracles introduce or follow visions, and others stand alone. Along with Ezekiel, Daniel, and Revelation, Zechariah is one of the most apocalyptic books in the Bible.19
"In the present writer's judgment, his [Zechariah's] book is the most Messianic, the most truly apocalyptic and eschatological, of all the writings of the OT."20
"Apocalyptic literature is basically meant to encourage the people of God."21
"Only apocalyptic could express the utter transcendence involved in the radical transformations that would accompany the irruption of the kingdom of YHWH and the consequent shattering of all human and earthly systems in its wake."22
"The apocalyptic visions of Zechariah, though filled with symbolism, are not as complicated and bizarre as those of Ezekiel, but do require angelic interpreters, at least in chapters 1-6. He goes beyond Ezekiel and other early apocalyptists, however, in his declarations that what he envisions is as good as done, for it is only an earthly reflection of what has in fact come to pass in heaven."23