Crossroads — Studies on the History of Exchange Relations in the East Asian World 12 (April 2015), Special Issue: Seafaring, Trade, and Knowledge Transfer: Maritime Politics and Commerce in Early Middle Period to Early Modern China [Contents: Angela Schottenhammer: Seafaring, Trade, and Knowledge Transfer: Maritime Politics and Commerce in Early Middle Period to Early Modern China / Li Man 李漫: Tea, Fierce-Fire Oil and Maps: Northeastern China during the Tang-Song Transition / Kimura Jun 木村淳: Maritime Archaeological Perspectives on Seaborne Trade in the South China Sea and East China Sea between the Seventh and Thirteenth Centuries / Ma Guang 馬光: The Shandong Peninsula in Northeast Asia: Maritime History during the Yuan-Ming Transition / Elke Papelitzky: An Introduction to Siyi guangji 四夷廣記 / Mathieu Torck: Haifang 海防 and the Ming-Qing Transition: A Few Notes on Coastal Defence, Navies and Military Writings / Wim de Winter: Perspectives for a Comparative Cultural History of the Ostend Company Interactions in Bengal and China]