Here's a reasonably straightforward enough article
A topic where geography and politics are completely intertwined, we looked at it from the two viewpoints to see how the term is used.
www.thejournal.ie
And from Wikipedia
Alternative names that have sometimes been coined for the British Isles include "Britain and Ireland", the "Atlantic Archipelago", the "
Anglo-Celtic Isles", the "British-Irish Isles", and the
Islands of the North Atlantic. In documents drawn up jointly between the British and Irish governments, the archipelago is referred to simply as "these islands".