NO PURCHASE NECESSARY. Offer expires 1/31/2023 at 11:59pm ET.  Valid in the United States only. Those who request must be college professors who are considering for possible course adoption. Offer limited to one e-book each to the first 250 qualified respondents, who will receive an email with a unique download code and instructions on how to claim the free e-book by 2/6/2023. All e-books will be distributed via Glose, a free digital reading platform.