Chuxueji (Records for Early Learning), an encyclopedic reference book in 30 volumes compiled by Xu Jian and others during the Tang Dynasty; it is considered one of the Four Great Leishu of the Tang along with the 艺文类聚 yì​wén​lèi​jù, 北堂书钞 běi​táng​shū​chāo, and 白氏六帖 bái​shì​liù​tiè.