Was just about to comment that in lieu of buying an ebook version of the currently discussed Unix book, I discovered he had written "Understanding the Digital World" and bought it on impulse. Currently going through the first chapter now. Like all of his books, extremely well-written. I was surprised at how much the introduction focused on data sharing and the Snowden-revelations, which he segues into after talking about how he and his wife weren't using Airbnb, Uber, and Whatsapp, on a recent vacation trip.