I have just uploaded the beginnings of an essay on information theory to my website. You can see the essay (in its currently incomplete state) here. Information theory was first described by Claude Shannon in his groundbreaking 1948 paper, A Mathematical Theory of Communication. What is particularly surprising about Shannon’s truly remarkable paper is its completeness. Not only does Shannon suggest a mathematical model for (digital) communication and information, but he produces a huge array of fundamental results for his model. It is exceptionally rare that such a complete theory comes into being so fully formed, like the birth of Athena. A decade ago, UCSD produced documentary about Shannon’s life and work, which I have posted below.