Make sure your device is turned on and connected to wi-fi or mobile internet
On your mobile phone or tablet, navigate to this page (if you’re not already on your mobile phone or tablet right now).
If you’re using your mobile phone or tablet right now, just click this link to download the ebook.
If asked “Are you sure you would like to download this file?” tap “Yes”.
The file will download to your device and will be available inside your iBooks App in your books library.