Jason Snell hasn’t written a tech book in a long time, but he changed all that with his new Photos for Mac: A Take Control Crash Course. Jason takes a deep dive into Apple’s new Photos app and talks about what works and what isn’t what should be, and who it is for. iCloud Drive figures prominently in the discussion, as does the transition from iPhoto or Aperture to Photos, the kinds of editing it can do, and more.