I’ve been enjoying a new-to-me app called Blinkist, which is basically summaries of interesting non-fiction books. The summaries are really well-written, and I enjoy reading them as refreshers even when I’ve read an entire book already. Many business or non-fiction books I read would have been better as an article, and you can tell when a publisher has encouraged an author to pad the book a bit so they can sell it for more, and the Blinkist version often satisfies my curiosity there. And finally there’s some I read that just whet my appetite for more, and I end up ordering the full book. I ended up subscribing to the service for $50/yr.