The eleven essays in this volume apply the syntactic theory of Carl Pollard and Ivan Sag - Head-Driven Phrase Structure Grammar (HPSG) - to a formal study and analysis of German grammar. A wide variety of fundamental and well-known phenomena in German grammar are addressed, including the German passive and impersonal passive, various Mittelfeld and Vorfeld word-order phenomena (including auxiliary stacking and the distribution of adjuncts), and the structure of phrasal constituents. Linguistic issues include the treatment of idioms, word-order variation and phrase-structure constituency, subcategorization, complementation, argument structure, case assignment, lexical rules, and syntactic ambiguity.