This is a textbook introducing the syntactic theory of Lexical-Functional Grammar (LFG) to people familiar with derivational theories such as Government/Binding theory and the Minimalist Program. It introduces the conceptual underpinning of the theory and its formal mechanisms, and develops a portion of a grammar of English. At every step along the way, the LFG approach is contrasted with the GB/MP approach in order to motivate LFG. Constructions covered include passive, dative, unaccusatives, wh movement, control and raising constructions, and anaphora.