In his book “The Wealth of Nations”, first published in 1776, Adam Smith famously likened the unseen influence of market forces, acting on participants who are all looking out for their own best interests, to an invisible hand. In “An Edible History of Humanity”, I liken food’s influence on history to an invisible fork that has, at several crucial points in history, prodded humanity and altered its destiny, even though people were generally unaware of its influence at the time. And I have just learned (rather belatedly, because I have something of a New Yorker backlog at the moment) of Peter Leeson’s new book “The Invisible Hook: The Hidden Economics of Pirates” which, according to this New Yorker review, explains pirate customs and behaviour using economic analysis. (It’s based on an academic paper from 2007 on pirate economics.) It sounds great.