Bookworms not only collect books that they are going to read in the future, but also keep books they have already read by their beds. In order for the book you chose to be a book you can snuggle up with you have to check these things over. Is the book in my preferred genre / style? Is it too hard / easy? Do I like the first part of the chapter? After you check these things over and they’re all answered positively you are now a bookworm with the book you’ve chosen (not that you should stop with just this book, of course).