I’m slowly building my book library. I enjoy books in all shapes and forms: paperback, e-book, audiobook, animated book summary, etc. My library reflects that.
Most of my technical books are e-books. I usually get their PDF version and put it in a “Books” notebook in Evernote; its search feature goes into those PDF files to find what I’m looking for. Quick access when I need that information.
My fiction books are either paperpack or e-book (usually in Kindle format).
The non-fiction, non-technical books are well spread out in different formats.
I’ve been reading more and more of my e-books on Kindle (on my iPad), using its features to highlight and comment; I often review my notes and highlights.
I’m getting more and more paperback books. Sometimes, I end up getting them after either listening to the audiobook or reading the e-book versions.
I have books in my library that I’ve purchased over a decade ago and haven’t read yet. I also have been acquiring more books that I don’t know when I’ll read them, but I do want to have them readily available. I don’t ever want to be in a situation where I tell myself “oh, gee, I really want to read something, but I have nothing to read”. Seriously, dude? Just go to your library and pick something up!
When I get book recommendations from friends or from reading other books, I look them up on Amazon and add them to my “books wishlist”, and I add a note to remind me where the recommendation came from.
To keep track of my backlog, books I want to read soon, books I’m currently reading, and books I’ve read, I still use the same process I’ve described in 2016.