Sign in to the app with the SAME email you used to purchase. (If you used PayPal, it will be your PayPal email address.) We will send a verification code to this address, which you'll use to confirm your account on the app.
Pro tip: you may not see the verification code in your inbox. Be sure to check your spam folder!
Your books (and any future purchases) will automatically be added to your bookshelf on our mobile app.