Generally, eBook purchases from Chronicle Books are considered final and non-refundable once the download is completed. This practice is standard within the industry due to the nature of digital content. However, customers should always check specific details on the current web page related to eBook purchases for the most accurate and up-to-date information regarding their return policy. If there are exceptional circumstances, it may be worth reviewing the terms and conditions outlined on the website or looking for any potential guidelines that might allow for a return under certain situations. Each case can vary, so it is essential to be informed directly from the most recent sources provided by Chronicle Books.