This is the second edition of a 1979 commentary on the book of Daniel. The commentary is completely revised, and the introduction in particular is here much extended and addresses fundamental questions regarding the book of Daniel and the apocalyptic movement it inaugurates with 1 Enoch. Daniel is an indispensable trove and reference about issues like the apocalyptic vision of world's periodized history, the notion of Son of Man, messianism without a messiah, the belief in resurrection, the kingdom of God, the centrifugal spread of divine revelation, and the positive role of the Jewish diaspora. This edition is meant for scholars, college and university researchers, and students of the Bible of the Old Testament and New Testament in general.