ur final cover is a reconstruction illustration of the “Nanhai No. 1”, a merchant ship once sailed along the Maritime Silk Road during the Southern Song Dynasty (1127–1279), and ended up lying at the sea bottom til 1987, when its wreck was found. It is by far the largest Song vessel to be discovered, and the astonishing relics in its cargo, nearly 80,000 pieces of porcelain ware and gold and silver artifacts, has earned it the title “Sea-based Dunhuang“, the city full of history and legends on the Silk Road. Ever since the proposal of “Belt and Road“Initiative, the two Silk Roads, one traversing across the Eurasia via today’s Xinjiang, and the other linking countries in other continents with China through the vast oceans, have been frequently discussed, studied and even compared. It seems that the former has monopolized all the glories— every icon comes to one’s mind while the term “Silk Road“is mentioned, like delicate silk textiles transported by camels, lost city ruins under sands, and marvelous grottoes excavated on cliffs, is related to the renowned, traditional route known by people; while the latter, given centuries of ban on sea navigation during the Ming and Qing dynasties, became obscure and forgotton. Actually, just like the “Belt and Road“Initiative has extended the original range of the Silk Roads, both overland and ocean-going, today the concept “Silk Road“has also been expanded—it is a spirit of exploration, communication, and openness. As more and more shipwrecks like the “Nanhai No. 1“have been discovered, people have realized that the Maritime Silk Road is never inferior to, historically, culturally or academically, the traditional one. The other cover options are: No. 1: a fresco in Xinjiang’s Kyzyl Grottoes depicts a bodhisattva performing “holding article dance“; No. 2: camels, once the most important trasportation method along the Silk Road; No. 3: the Danxia landscape of Zhangye, Gansu; No. 4 : the ruins of the ancient kingdom of Gaochang on the Silk Road; No. 5 & 6: divers examing scattered relics of sunken ships along the Maritime Silk Road; No. 7: the map of China’s southeastern coastline drawn by an Italian; No. 8: a Song Dynasty bronze mirror with engraved pattern of a ship; No. 9: a fresco depicts Tang Dynasty Empress Wu Zetian on a dragon boat; No. 10: an unearthed yellow glaze bottle that gives us a clue how the Huxuan dance from Western Regions was peformed.