Upper Sorbian is the fourth largest of the West Slavic literary languages. Together with its various dialects, it is spoken today by an estimated 30,000 to 40,000 inhabitants of Upper Lusatia (Oberlausitz), a region of the eastern German state of Saxony (Bundesland [Freistaat] Sachsen). The literary language is actively used in journalism, broadcasting, publishing, and the performing arts. The city of Bautzen/Budy\154in, with a population currently estimated at 46,000 (only 2% of whom are Sorbs), is the center of Upper Sorbian literary, scholarly, and broadcasting activity. The simultaneously most comprehensive and compendious grammar of the Upper Sorbian language to appear after World War II is that of H. Schuster-\138ewc (Hinc \138ewc), who in 1968 published Gramatica hornjoserbskeje rece. 1. zwjazk: Fonematika a morfologija. A revised version of his grammar was publihsed in 1984 (Gramatica hornjoserbskeje rece. 1. zwjazk: Fonologija, fonetika a morfologija). Both versions of the grammar were written in Upper Sorbian and have been inaccessible to those not already familiar with the language. The present volume is not only an English translation, but also a thoroughly glossed and corrected revision of the 1984 edition of the Gramatica. Furthermore, it reincorporates the fourth chapter of the 1968 edition, which was ommitted from the 1984 edition, under the title