Core Readings:
Ruins of Desert Cathay, Vol II, Chapter LII, To The Caves of the Thousand Buddhas, pp. 20 to 31 https://ia801603.us.archive.org/5/items/in.ernet.dli.2015.42829/2015.42829.Ruins-Of-Desert-Cathay--Vol-2_text.pdf. Stein’s own account of his first visit to the Mogao Caves.
Mogao Photos - Getty Images https://www.gettyimages.com/photos/mogao-caves?mediatype=photography&phrase=mogao%20caves&sort=mostpopular
Recommended but not Required:
YouTube: The Silk Road I - 3 of 12 - The Art Gallery in the Desert. 47-minute video. This episode of the Japanese Silk Road series visits the Dun-Huang Mogao Caves of the ThousandBuddhas, their art treasures and Library Cave. https://www.youtube.com/watch?v=hzQdeSSPiXQ&t=331s
For Further Reading:
Journeys on the Silk Road, Morgan & Walters, Chapter 8, Keys to the Cave, pp. 117 to 128.
Mogao Caves – Wikipedia https://en.wikipedia.org/wiki/Mogao_Caves
Video: On the Silk Road: Exploring Mogao Grottoes in China's Dunhuang https://youtu.be/G2LccA9W0q8