I-IV -- Preface -- Contents -- Introduction -- The descriptive complexity of generalized local sets -- Monadic second-order logic, tree automata, and constraint logic programming -- Principle languages and principle-based parsing -- The expressivity of tree languages for syntactic structures -- Underspecification in Tree Description Grammars -- On cloning context-freeness -- Macros for Minimalism? Towards weak descriptions of strong structures -- Adjunction structures and syntactic domains -- Representational Minimalism -- Index -- 348