This is a PDF file, 100 pages.
Workbook for upper-beginner and lower-intermediate learners. Suitable for JLPT N4, A-level Japanese exam preparation.
 
Key Features
N4 grammar points explained in English with example sentences
Explanations in the tutor's own words based on over 10 years of teaching experience
Exercises to build understanding and confidence, with answers — not JLPT-style drills
 
Grammar is explained in detail, yet the book remains compact overall. The main units take just about 30 hours to complete, allowing students to balance Japanese study with everyday life, or to focus on grammar alongside reading, kanji practice, etc. 100 pages in total, 80 pages for the main Units.
 
文法は読んで自習できる宿題を目標に細かく説明し、全体はコンパクトにまとめました。約 30 時間で学習することができ、忙しい生活の合間に日本語を勉強している人や、読解・漢字などと並行して学びたい人に使いやすい教材です。合計100ページ（本章80ページ）。
 
Recommended for A-level
This workbook is suitable for the A-level Japanese exam too. N4 covers slightly more grammar than A-level, but they are very similar. 
Aレベル試験にもおすすめです。N4はAレベルより少し文法が多いですが、ほとんど同じです。
 
Paperback
Available from Amazon.