Having it be DRM-free means he doesn't have to mess around with every store under the sun. I'm not a Google Play user normally, but this lets me purchase it thr

Having it be DRM-free means he doesn't have to mess around with every store under the sun. I'm not a Google Play user normally, but this lets me purchase it through the web interface, download the PDF, and then read it however I want. For his book on Wolfenstein, I did just that by reading it in Apple Books on my iPad.