*NO PURCHASE NECESSARY. Offer expires on 11/3/22 at 11:59 PM. It is valid in the United States only, and limited to three eBooks chosen from the titles listed above to each of the first 500 instructors at accredited US colleges who are considering  the books for course adoption. Those who qualify will receive a download code and instructions within ten business days. eBooks will be distributed via Glose, a free digital reading platform. All sample copies are given at the discretion of HarperCollins.