The 25th edition of Hermann Paul's grammar is the first step toward a study grammar that combines the virtues of greater ease of use, concentration on essentials, and a more reliable description of Middle High German. The revised accounts of phonology and morphology have profited in part from the ongoing work on the extensive Middle High German grammar now in the process of completion. The description of noun declination has been thoroughly revised. The syntax section has been extensively reworked and greatly expanded, with a wealth of references to Middle High German prose texts.