This volume is a collection of state-of-the-art papers in generative studies of second language (L2) acquisition bringing together an unusually broad range of interests and inquiry. Selected papers report on controlled experimental studies within specific areas of research investigating the development of L2 grammars; others formulate exciting new proposals for methodology and learnability in both first and second language acquisition. Following an introduction which argues for new research strategies that focus on the process of acquisition along with its product, the book is divided into two sections: Current Perspectives includes compelling new work on the development of functional categories within a parameter-setting model of L2 acquisition; the second section, New Directions, introduces research and discussion on topics which reflect the latest developments in the field, including syntax-semantics correspondences, L2 processing research, code-switching from a UG perspective, and applications of Chomsky's (1995) Minimalist Program to second language acquisition studies.