Clearly identify required textbook
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If you are having trouble clearly identifying your required textbook, an image of the cover is not the best way to do it. For books, the unique identifier is the ISBN (International Standard Book Number). You should get this from your instructor. If you're not sure how to contact them, you can do so through Canvas. See the "Ask Your Instructor a Question" section at How do I get help with Canvas as a student?.
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