I have written six books about the history of places I have travelled to. If you are interested in history and / or travel then you should check out these books. Please bear in mind the books are travelogues rather than travel guides and so cover only the places I visited.
Here is the about Northern Ireland and Scotland:
A series of essays about visits to the murals of West Belfast, the award-winning Titanic Centre, The World Heritage Site of the Giant’s Causeway, the seven little-visited stone circles at Beaghmore, and the dramatically situated Dunluce Castle perched high on the cliffs in Antrim in Northern Ireland. There are further stories about the island of Lewis and Harris, Edinburgh, Dryburgh Abbey, and Rosslyn Chapel in Scotland.