You can form that kind of relationships with books as well, especially series. The first time you read the book, it’s to discover the story, to learn what happens next. As you return to it, or read another book in the series, it’s because you want to revisit them.
For example, for me every new book in The Number One Ladies Detective Agency series by Alexander McCall Smith is like a new visit with old friends. I know the characters, the main ones and the wide supporting cast as well, and I want to learn what