"The Seaman's Secrets" is a work by John Davis, a 16th-century English navigator and explorer. John Davis (c. 1550-1605) was known for his significant contributions to the field of navigation and his exploratory voyages in search of the Northwest Passage. "The Seaman's Secrets" is a treatise on navigation, and it provides practical advice and techniques for sailors. Davis was an experienced navigator who sailed on several voyages, including those in the Arctic regions. His knowledge and insights into navigation were crucial during the Age of Discovery when seafarers were exploring uncharted waters.