The fall 2018 textbook for COMP620 Information Privacy and Security is
Computer Security: Art and Science, by Matt Bishop, Addison-Wesley Publishing, 2003, ISBN: 0201440997
The book is available at the A&T bookstore new for $100.00, used $75.00, new rent $82.50 and used rent for $47.50. You can purchase this from the store on campus or online.
The book is available from several online booksellers. There are search engines that can assist you in finding the book. Some examples are:
The list price is $99.99. The textbook can be found for $7.29 used and $59.68 new including shipping. If you are purchasing the textbook after the start of the semester, you may wish to pay for expedited shipping.
Textbooks are expensive, but in the bigger picture of your education, they are a useful investment. Not having a textbook may result in your not grasping the concepts as well and therefore not getting as good a grade as you might. If you shop wisely, textbooks need not be a major expense. If you buy a cheap used book now, you might be able to sell it at the end of the semester resulting in a trivial overall expense. (If you can sell the cheap book at a profit, it is better than not buying a book at all.)