Clicking on the download link above may open your downloaded book in another browser tab or window. To SAVE the book to your device hover over the book in that tab and a set of buttons should appear. One of these buttons is to download/save the PDF file to your device.
On mobile devices use the usual share icon to save to that device or send to yourself in email.
When you click on the download link, even though the file has not been saved to your device, it will still count as one of your four allowable downloads. Please be sure to SAVE your file after viewing in your browser window.