There is generally no common material that binds together the works of the individual prophets that comprise the Twelve, but through Sweeney's commentary they stand together as a single, clearly defined book among the other prophetic books of the Bible. Each of the twelve individual books--Hosea, Joel, Amos, Obadiah, Jonah, Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah, and Malachi--begins with its own narrative introduction that identifies the prophet and provides details concerning the historical setting and literary characteristics. In this manner each book is clearly distinguished from the others within the overall framework of the Twelve.