How to open the epub book file on your device:

Apple iPhone or iPad:
After you download it to your device, you’ll see the icon turn into an iBooks one. Tap and hold on the file and an “Open in iBooks” will pop up. Tap that, and your iPad or iPhone will open iBooks and then open the epub file you just received.

Android phone or tablet:
Download to your device, then go to your top edge pulldown status menu. Tap on the item that says the book has completed downloading. If that message is gone, go to your Downloads folder and the 20 Things book file should be at the top of the list. Tap it. It should open in an ebook app if you have one. If you don’t, go to the Google Play store and get an ebook reader. We recommend PocketBook. Now when you Tap on the ebook, it will open in that app.

Windows computer:
Download to your desktop and if you don’t already have an ebook reader, we recommend this: http://icecreamapps.com/Ebook-Reader/

Mac computer:
Simply download to your desktop and double click to open the book file; it will automatically open in iBooks.