A sequel to Oceans Odyssey 3, Oceans Odyssey 4 further highlights the archaeological work completed during the 1990-1991 excavation of the "Tortugas" shipwreck by Seahawk Deep Ocean Technology of Tampa, Florida. The ship was identified as the 117-ton Buen Jesus y Nuestra Senor del Rosario, a merchant vessel sailing with the 1622 Tierra Firme fleet. The project represents the world's first robotic archaeological excavation of a deep-sea shipwreck.
 
Oceans Odyssey 4 focuses on the ship's pottery assemblage comprised of a major collection of olive jars, tablewares, cooking vessels and tobacco pipes recovered from the 405 meter deep wreck site. The assorted ceramics presented in the volume's seven chapters embrace the unchanged cultural preferences and production that dominated early 17th-centruy Spain. Additionally, the Afro-Caribbean colonoware suggests possible evidence of maritime slavery in the Americas fleet and the ship's olive jars reveal the economics of long-distance colonial trade. These intriguing papers, enhanced by full-color images and detailed charts of recovered artifacts, provide a rare insight into the customs and traditions that flourished during the final years of Spain's Golden Age.