In a field like L2 vocabulary teaching and learning where interest and research studies are burgeoning, this book offers a useful collection of papers that contains new ways of investigating vocabulary development, techniques for vocabulary teaching such as the Focus on Form hypothesis, word associations, and the use of concordance data. In addition, it tackles recent areas of analysis such as the treatment of vocabulary in teaching materials—an area of almost complete neglect in the literature. The book is divided into three parts. Part one provides the overview and deals with the development of a model for vocabulary teaching and learning. Part two focuses on empirical studies on lexical processing in English and Spanish. Part three centers on materials design for vocabulary teaching and learning. The advances made in this book will certainly be of interest to researchers, teachers, and graduate students working on this very active field of inquiry.