I can't find the magazine rack

I cannot find the settings tab, or the Magazine Rack. The app is driving me crazy because I cannot navigate it. I'm looking for a way to borrow a magazine from SF Public Library and I click on Stack and there is nothing there...no settings, no Magazine Rack. Do I need a class to figure out this app? Do I need a librarian to teach me? I went to college and I cannot figure this out. Jeez.