Your Library is a way to keep updated on your favorite stories and keep track of all of the stories that you are interested in. It is private to your account and cannot be seen by anyone else.
Please note that the recommended Library size is approximately 200-300 stories. As the volume of stories increases in your library, so does the amount of time required to load all the stories in your Library.
There are a couple of ways that you can manage your Library; click on a link to take you to that article.