Every boat requires maintenance to avoid trauble before it happens and to keep ahead of the marks and dents that come with use. Even a boa t in protected storage requires care, particularly the engine. This is a volume of maintenance work an owner may reasonably expect to accomplish himself. It describes the essential procedures he shoul'd understand even if the work is done by a yard. New materials and techniques have drastically changed boat building and boa t maintenance. This volume is up to date covering plywood, fibreglass, aluminum, steel, concrete and wood. New tools, fastenings, paints and fittings are described in detail. Every kind of marine engine is discussed fram installation to trauble shooting. The section on diesel in-boards is particularly valuable and the author's rautine check list for keeping the power supply in perfect running order is a m ust for a Il boa t owners. Sailboat maintenance is fully covered . with a discussion of the care and repair of masts, spars, sa i Is a nd riggi ng. This volume is encyclopedic. For projects like laying a canvas deck, replacing sheathing or even freeing a frozen bolt, the directions are complete, reliable, up to date and easy to follow.