The introduction gives a basic analysis of how the oceans work and when and where it is best to catch fish. The book then moves on to cover safety at sea, the dos and don'ts and use of basic common sense while at sea. It describes what type of grounds fish well for different species and the best ways of fishing the different types of grounds. Individual species are described, often with an accompanying photograph, and a basic description of how they live in their habitat. All the top species associated with the Irish coast are covered in great detail including their maximum weight, current record, habitat, when to fish for them and what tactics and traces work best for catching them. It also discusses all the top baits for sea fishing, how and when to collect them yourself and what species each bait will catch. Rods, reels, line, hooks and the top traces are briefly examined and the author concludes with listing the best locations in Ireland that he has fished for different species and where he has found the best fishing.