Bushmills is 400 years old, or so the marketing spin would have you believe. However, in fairness to the author, he debunks the 1608 myth concerning Bushmills fairly early on in this look at whiskey production in Ireland.
The author takes the reader through the historical/political background of Ireland, setting the scene for the production of whiskey. The journey progresses through the good times and the bad, outlining the effects on the industry but also their specific effects on Bushmills, covering the gambit of taxation, competition, prohibition and consolidation.
The penultimate chapter is devoted to how to make whiskey and the final section, entitled "The Bushmills Family", is not, as one might misconstrue, a chapter about people, but the range of whiskeys produced.
The one issue which was not mentioned, presumably on a "Don't mention the war" basis, is the fact that Bushmills Distillery was, until relatively recent times, an employer that actively employed those of Protestant faiths only.