The book is in overall good condition, having been purchased from a bookstore and read only once. There are no writings or folds, and the pages have been opened very little, making it a beautiful, like-new condition. This book clearly outlines a short-term, intensive study method for those who are busy with work or housework and find it difficult to find time to study, or for those who tend to give up easily. It is recommended for those preparing for certification exams or entrance exams, and for those who want to achieve results with an emphasis on efficiency. Please consider this item with the understanding that it is a used item. We will take waterproof measures and carefully package the item before shipping.