The fact that vocabulary is an indispensable component of language is indisputable. However, substantial controversy surrounds the issue of how to present vocabulary. The main concern of this book is to compare the effectiveness of three vocabulary presentation techniques including semantic mapping, semantic feature analysis, and vocabulary notebook keeping on L2 vocabulary comprehension and production. It offers a theoretical review and an empirical analysis of the issue. This book can be useful for language learners, teachers, and textbook designers.