Also known as Qifen Study, it refers to an institution for book collection, arrangement, research and dissemination in ancient China. The name of the Seven and a Half Study Room comes from the famous calligrapher Huai Su of the Tang Dynasty's cursive script "Thousand-Character Essay", in which there is the saying "seven and a half", which means that the strokes of Huai Su's cursive calligraphy are of moderate thickness, neither too fat nor too thick. Yu Xian Shou. Qifen Study was founded in the late Tang Dynasty. It was originally founded by the famous calligrapher, writer and scholar at that time, aiming to inherit and promote traditional Chinese culture and promote the development of calligraphy, literature and academic research. The collection of books in the Qifen Study is mainly ancient classics, including classics, histories, poems, poems, poems, etc., as well as some precious manuscripts and engravings, which are of great significance to later generations of calligraphy and literature. and academic research have had a profound impact.