Regarding the ‘self-study guide’, if the items appear on your exams and you have your exams copyrighted, that’s clearly copyright infringement and you should have your counsel shut down the book. If the items are made up and the book states they appear on your exam, you can request a correction. If your exams are not copyrighted then you don’t have a strong case to shut down the book… you might want to contact an Intellectual Property lawyer to see what your options are.