This essay traces and analyzes modern-critical scholarship on the Minor Prophets or Book of the Twelve Prophets from the late eighteenth century through the early twenty-first century. It differentiates between the Christian practice from the time of Jerome and Theodore of Mopsuestia that treated the Twelve as twelve individual Minor Prophets that were collected together and the Jewish practice of reading the Twelve as the Book of the Twelve Prophets. Early treatment of the Minor Prophets focuses especially on the early work of J. G. Eichhorn (1780–1783), W. M. L. de Wette (1817), F. Hitzig (1838), H. Ewald (1840–1841), and B. Duhm (1875, 1922). More modern treatment of the Book of the Twelve Prophets focuses especially on the work of K. Budde (1922), R. E. Wolfe (1935), D. Schneider (1979), O. H. Steck (1991, 1999), James D. Nogalski (1993, 2011), Jakob Wöhrle (2006, 2008), and the author (Sweeney 2000).