This weighty 584 page hardback describes itself as "An Outline History of Powered Ships from the Beginning of Steam Navigation - The Irish Mercantile Marine 1815-2015"
That description doesn't do it justice. It is a description of every shipowner to have been based in Ireland during the 200 years specified, AND their ships. The index alone runs to 27 pages. Now, given the limitations of making a book readable, obviously the descriptions themselves are outline histories rather than the detailed histories to be found in "single company" publications, but nevertheless they build into a thoroughly readable account of 200 years of Irish shipping history.
Strongly recommended!