The Mariners Master Skipper of Power Study Guide (5 Book Set) is the ultimate resource for mariners pursuing advanced knowledge and certification. Designed for use with the Mariners Master Skipper of Power - Course and Certification, this comprehensive collection includes five essential guides: Navigational Rules of the Road, Seamanship for the Mariner, Navigation for the Mariner, Assistance Towing for the Mariner, and the Marine Radio Operator Permit.