The book addresses the role of the L1 (first language)-based concept categorization in L2 (second language) vocabulary learning from a cognitive linguistic perspective. The author hypothesizes that the patterns of one s L1-based concept categorization will be present in his or her L2 vocabulary learning as well. The two characteristics pertaining to concept categorization under investigation are the prototypicality and the basic-level effects. The results show that the psychological salience of the basic-level and the prototypical concepts in one s L1-based conceptual system is related to...