初級日本語 げんき I
Genki: An Integrated Course in Elementary Japanese I
BeginnerGenki seriesIn-depth analysis · 2026-08-26
Verdict
The default first textbook for a reason — if you'll actually do the drills.
Genki earns its status on structure: twelve predictable lessons that scaffold grammar, vocabulary and output in a rhythm no competitor matches, backed by the largest third-party ecosystem in Japanese learning. The third edition's upgrades — clearer grammar notes, modernized vocabulary, app-based audio — fix the book's age, not its classroom DNA. Studying solo works, but budget for the separate answer key and a video companion: the free exercise site that completed the standard self-study recipe for years shut down in October 2025, and most guides haven't noticed.
Best for
- First-time learners who want one structured path from zero to JLPT N5
- Self-studiers willing to do written drills and pair exercises solo (write both sides)
- Anyone planning to continue into university courses or Quartet — this is the track they assume
Not ideal for
- Phrase-seekers and travelers — the college-campus vocabulary arrives before survival Japanese
- App-first learners who won't open a workbook; the value is in the drills
- Kanji-focused learners — the reading-and-writing appendix is the book's weakest limb
Workload 学習量
- Pages
- 382, plus a separately sold workbook
- Lessons
- 12 conversation-grammar lessons + 12 reading & writing lessons
- Coverage
- 145 kanji · roughly 1,100 words · about JLPT N5 / CEFR A1
- Audio
- 6 h 50 min via the free OTO Navi app (no CD)
- Realistic pace
- about a lesson a week — 3–5 months with the workbook
What's inside 目次
- 01会話・文法編 第1課〜第12課
- Each lesson: dialogue (recorded at natural and paused speeds), vocabulary, grammar points in English, drills, culture notes
- From New Friends and Shopping through Kabuki and Feeling Ill — everyday campus-life situations
- 02読み書き編 第1課〜第12課
- Hiragana (L1) and katakana (L2), then graded readings with the lesson's kanji
- 03別売 — ワークブック・解答
- Workbook with tear-out drill sheets; the official answer key covers textbook and workbook for both volumes
Strengths & weaknesses 長所と短所
Bibliographic details 書誌情報
| 書名Title | 初級日本語 げんき I |
|---|---|
| 著者Authors | 坂野永理・池田庸子・大野裕・品川恭子・渡嘉敷恭子 |
| 出版社Publisher | ジャパンタイムズ出版 (The Japan Times Publishing) |
| 発行Published | March 2020 · 3rd edition |
| 頁数Pages | 382 pp. |
| 定価List price | ¥3,600 + tax |
| ISBNISBN | 978-4-7890-1730-5 |
Bibliographic source: NDL Search by ISBN.


