Following is the steps how to get all these by CAD $16
First, click the following picture to subscribe, you need to provide your name, address, email and credit card information. Note that US order is USD $12, Canada order is CAD $16 ($17.22 after tax).
Although the paper magazine takes 4 to 6 weeks to delivery, you can read the iPad digital version right now:
After you submit the the subscription, a email will send your email account which should contain the 10 digits account number.
If you have not install National Geographic app on your iPad, you can click on the following picture to install.
Next step asks you to enter a password. The user name is your email address.
Now you can sign in using your user name and password.