When looking at a book page on the app, I’d like to see some kind of indication of how similar the book is to other things I’ve liked (or disliked) before. It could be done with images/icons to show whether the book is a safe pick, worth trying out, or probably something the reader should pass on. Or it could be done with words, numeric coding, whatever. I look up books and try to read through reviews and tags, and that’s great. But if there was an easy at-a-glance indicator of how probable it is that I’ll like the book, it would save time on reading all the other information for books that are just not likely to land well for me.