This text explains clearly and systematically all the basic principles of shipowners' mutual insurance. It the structure and constitution of P & I clubs; the role of club managers and P & I representatives; underwriting; specific risks covered, and exceptions and exclusions to club cover; claims and claims handling; P & I reinsurance; and the role of specialist clubs. Changes affecting the P & I market, including developments in reinsurance, OPA 90 and the updating of key case law are also included.