John Codman was an American author and advocate for maritime commerce, known for his influential writings on the American shipping industry. His most notable work, "Free Ships: The Restoration of the American Carrying Trade," argued for the importance of free trade and the revival of American shipping, reflecting the economic concerns of his time. Codman's advocacy for a robust maritime policy was rooted in his belief that a strong shipping industry was essential for national prosperity and independence. In addition to his economic writings, Codman contributed to historical literature with works such as "Arnold's Expedition to Quebec," which detailed the military campaign led by Benedict Arnold during the American Revolutionary War. His writings not only provided insights into the historical events of his era but also showcased his ability to engage with complex themes of trade, warfare, and national identity. Codman's legacy lies in his commitment to promoting American commerce and his contributions to the understanding of early American history through his scholarly works.