You do not need to have an entity to own a trademark. As long as the name otherwise qualifies for trademark registration, she can own the trademark personally. There is not enough information here to determine if the name would qualify for a trademark registration.

I hate to say it, but it depends. Certain classes the PTO considers close enough that there may be a natural extension. If it is a very famous mark (like Nike, Coca-Cola or Planet Hollywood), than this is more likely. Especially, if the marks are exactly the same. Classes with goods which are... View More

Generally speaking, if it is just one person who has not do anything in furtherance of actually stealing, then no, it isn't illegal -- i.e. it isn't a illegal to just have the idea in your head, you have to take some sort of action to accomplish the goal (e.g. downloading or copying the... View More

Yes. Unless the book is in the public domain (meaning it is no longer subject to copyright protection), you need permission to make a derivative work such as an audio book. The contract between the author and the publisher determines from whom you need the permission.