If COM Library does not have the book you want, you can search the catalogs of other libraries or use WorldCat to see if libraries nearby have it. Once you've found the book, you have several options for getting it.
Here is how to find out if another library has the book you want, step by step:
Tip: If you do go to another library it's a good idea to call ahead to make sure the book is available and not checked out.