Access Code
A Content Access Code is packaged with some new Cengage textbooks, purchased at local bookstores, or purchased online. It lets you register your book and access the online materials. Your access code should be similar to PP8XLP3XD528HC
Aplia, MindTap, 4LTR or CengageNOW Course Key
A course key is a 12 or 15-digit string of numbers and letters that identifies which course you're taking. Your instructor should provide this to you. Try locating your course key in your syllabus or on your instructor's course web pages.