In Book I, the revisions are directed at making the grammatical explanations easier to understand, while adding further explanations of points that students have difficulty with. Changes have also been made in favor of more natural practice sentences and dialogues. In addition, new appendices list the particles, interrogatives, and sentence patterns in the book, as well as the kanji introduced.
More fundamental revisions have been made to Book II, which has been expanded and divided into two volumes, Book II and Book Ill. The changes result in a smoother transition from Book I, make new grammatical elements clearer, and present more natural practice dialogues and exercise sentences.
This concise course in natural Japanese is ideal for such students as businessmen whose aim is a working knowledge of the spoken language in everyday life. "Survival Japanese for Adults," as it might be called, gets to the heart of the language without recourse to childish or classroom-only Japanese.
Vocabulary and grammar have been limited to about one-third that usually encountered in beginner courses, and words and patterns that students will find immediately useful are emphasized.
The thirty lessons are composed of dialogues, notes on grammar, and vocabulary, exercises and quizzes. In addition to developing verbal fluency, by the time the student is one-third the way through Book I he will have mastered the two phonetic syllabaries of Japanese.