Prof. Seonglyong Ryoo studied architectural engineering at Korea University as an undergraduate. Under the direction of Prof. Namchull Joo (an emeritus professor in KU), Ryoo wrote his master’s thesis on “Chulmok-ikgong in the late Joseon Dynasty,” and Ph.D dissertation on “Chusimpo style in the Koryo Dynasty.” He continued his research about the early Joseon Dynasty, Dapo style, and traditional Korean houses. Then, he organized all styles of Korean wooden architecture in every period. Because of his research, he was awarded by the Architectural Institute of Korea in 2007 and 2016. He is also doing practical activities for architectural heritage, and received a cultural heritage repair engineer license from the Cultural Heritage Administration of Korea. With his research about various architectural cultural heritages including Sungnyemun Gate, he provides information for accurate and efficient work on repairing architectural cultural heritages. The ultimate goal of research and practice is in the historical and social sustainability of cultural heritage, and he has maintained the view that the modernization of traditional architecture and revitalization of local architecture is necessary. As a result, he has participated in various contests and practical projects related to the modernization of traditional architecture and the transformation of the architectural cultural heritage and won various awards and made achievements. In order to sublimate individual activities in civic solidarity, he has been participating in the National Trust movement since early on, and in recent years he has been analyzing the characteristics of local interest and efforts in Korea and around the world on the registration and use of UNESCO World Heritage sites. In addition to the previously mentioned presentations, his recent publications include 《House of Princess consort》 (2010), 《K-Architecture》 (2013), and 《Uzbekistan, Cherish Cities and Culture》 (2016).