This book is the second of two volumes designed to help students learn the meaning and writing of the 3,000 most frequently used simplified Chinese characters.
horrible experience of pain and suffering, sweat and tears, literal months of ceaseless work... 10/10 would do it again.
(everything is perfect except for the fact that 臼ㄐㄧㄡˋis one of the last characters introduced, and since it is presented in very common characters like 毁,搜,插, etc they are at the end of this book, which is annoying but just way too nitpicky to be a real problem)