Kyujanggak is a historical royal library located in Seoul, South Korea. Established during the Joseon Dynasty in the 18th century, it served as a center for collecting, preserving, and studying important texts and documents. The library played a crucial role in promoting scholarship and education among the ruling class. Today, Kyujanggak is part of Yonsei University and houses a vast collection of ancient books, manuscripts, and artifacts. It continues to be a valuable resource for researchers and students, offering insights into Korea's rich cultural and intellectual heritage.