The Book of Habakkuk is one of the twelve minor prophets in the Old Testament of the Bible. It consists of three chapters and addresses the prophet's concerns about the injustices and suffering faced by his people, the Judahites. Habakkuk questions God about why evil seems to prevail and why the righteous suffer. In response, God reveals that He will use the Babylonians to bring judgment upon Judah. The book emphasizes themes of faith, justice, and the importance of trusting in God's plan, even when circumstances seem dire. Ultimately, it concludes with a prayer of praise and a declaration of faith.