*Offer expires 2/28/2022 at 11:59pm ET.  Valid in the United States only. Those who request must be high school teachers who are considering for possible course adoption. Offer limited to one e-book 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 3/2/2022. All e-books will be distributed via Glose, a free digital reading platform. Duplicate requests will be voided. All sample copies are given at the discretion of HarperCollins Publishers.