In lexicalist approaches to syntax, words are equipped with information about the way they combine with other constituents and the meaning of the resulting combination.  The lexicon also encodes the systematic relations between word forms, such as voice alternations and derivational cognates. There are no syntactic transformations mapping one sentence structure to another.  This course is an introduction to two important lexicalist frameworks, Lexical-Functional Grammar and Head-Driven Phrase Structure Grammar.