Kanzen Master Here is a workbook that aims at cultivating the vocabulary needed for N1 of the Japanese Language Proficiency Test. The book is divided into two parts: "Jitsuryoku Yoseihen (practical training)" and "Mogi Shiken (mock test)". In the "Jitsuryoku Yoseihen" section, vocabulary is studied from two perspectives. In Part 1, the vocabulary is studied in terms of themes and situations; in Part 2, it is studied in terms of parts of speech and usage. Every chapter has a basic exercise and a practical exercise section. After confirming the meaning and usage in the basic exercise section, the learner deals with questions shown in the same format as in the exam in the practical exercise section. In examining the selected vocabulary, reference was made to various types of material, as well as past test papers, ensuring that the book concentrates on words that have a high chance of appearing in the examination.