I've reading Ulysses and I sorta had an idea I wanted to implement into a project I was already working on. However, this is a question I always wanted to know. If a character in a novel references pop culture, such as music, celebrities, books, movies, etc. How does this work? Can the book still be published? What are the laws on this? I know some people are going to say it's not necessary to ever do this, and if I am a good writer I won't need to do it. I don't care about that viewpoint, only the law and chances of getting the work published. Sorry if my question seems odd or doesn't make sense.