Duncan E. McKinlay was an American author and engineer known for his significant contributions to literature on engineering and infrastructure. His most notable work, "The Panama Canal," showcases his expertise in civil engineering and his deep understanding of the monumental project that transformed maritime trade routes in the early 20th century. McKinlay's writing reflects not only the technical challenges involved in the construction of the canal but also the broader implications of such an engineering feat on global commerce and geopolitics. Through his detailed analysis and engaging prose, McKinlay provided readers with insights into the complexities of one of the largest engineering projects of its time. His work stands out for its blend of technical detail and narrative storytelling, making it accessible to both professionals in the field and general readers interested in the history of engineering. McKinlay's legacy lies in his ability to illuminate the intersection of technology and human endeavor, capturing the spirit of innovation that characterized the era of the Panama Canal's construction.