I just started building this library, http://corefreedom.com/categories/library.112/, to which a guest should NOT have access to. Within that library are flip books and if someone has their link, anyone can access them. Here is an example of a flip book, http://corefreedom.com/Right_and_Wrong_Thinking_and_Their_Results/. The second link is within the library but I can't figure out the easiest way to way to protect it. Any suggestions?