iBooks App is missing and can't download it to get my books
I just updated my Apple iphone 5s 16GB to 10.1. My documents and other data is taken a ton of space. I deleted some apps and I must have deleted the Apple iBooks app. I found it in my document but it won't install and isn't even an option to install when I'm updating my iphone though I see it in my app list.
Can someone please explain how I can re-download Apple iBooks and be able to put it back on my iphone 5s when I can't even select it as an app from my library?
Thanks for any help