My mom has been addicted to online novels and reading her cell phone for the past year. Communication with her family has decreased, and she spends most of her time on her cell phone.

The most effective way is to find him some other hobbies and interests. Everyone has a lot of hobbies, reading novels is just one of them, he may also like to do other things, just, did not find or do not have time to do. You can dig up some of his favorite things for him to divert her attention, so it will be better.