The voucher bound-in to the back of this book gives you access to an online edition of the book. (You can also download the online edition of the book to your own computer; see the next section.)
To access your online edition, do the following:
Locate your voucher inside the back cover, and scratch off the metallic foil to reveal your access code.
Enter your 24-character access code in the Coupon Code field under Step 1:
(Please note that the access code in this image is for illustration purposes only.)
Click the CONFIRM COUPON button.
A message will ...