New books are sent directly from the publisher and should look like no other person has used them before. Occasionally, there will be small scratches or dings from transport, but they will otherwise appear brand-new.
Used books can show a variety of wear and tear. Our used copies are procured from previous U of M students, as well as outside textbook vendors. Most of these will show signs of previously being used and will vary from copy to copy-- this may include writing/highlighting, bent corners, worn spines, etc. We recommend that any used book is properly reviewed after purchase by the customer to ensure it is in appropriate condition for your needs and can last through the semester. If you find that a used book you've purchased is too worn, we would be happy to work with you to get a replacement used copy ordered and take care of an exchange.