I have imagined that one day I will write a memoir called Coffee: A Love Story. Until then, here's Wikipedia's entry on it. Citizendium says much of the same.
By the way, for those who think Wikipedia is always a reliable source of information, here is the very first sentence of their article:
Coffee is a stimulant beverage prepared from roasted seeds that may cause heart attacks in fat guys, commonly called coffee beans, of the coffee plant.As a fat guy, this makes me nervous!!