This book covers the most important grammar points for beginners and intermediate learners. Explanations are in both Chinese and English. All Chinese entries come without Pinyin. The example sentences are not translated, so you need to already have some basic knowledge of Chinese. The answer key comes in a separate booklet that is included in the package when you buy the book. The answer key also provides a short grammar overview in the beginning.
The book is fairly big (210 mm x 285 mm), so it’s not suitable for reading in bed or on the sofa.