Q: I download books to my Iphone via Itunes. when I have finished with them I delete them on I tunes they stay on my phone. How do I get rid of them on my phone?

Hey annion,

Thanks for using the Apple Support Communities. It sounds like you wish to delete content from your iPhone. The following resource outlines how to do so for various types of content:

How to delete content you've downloaded from the iTunes Store, App Store, iBooks Store, or Mac App Store - Apple Support

http://support.apple.com/en-us/HT5772

Books - iPhone, iPad, or iPod touch

1. Tap the iBooks app.
2. View your Purchased Books collection.
3. Tap Edit.
4. Tap any books you want to delete.
5. Tap Delete.

 

[…]

 

iTunes U courses - iPhone, iPad, or iPod touch

1. Tap the iTunes U app.
2. Tap Edit.
3. Tap the course you want to delete.
4. Tap Delete.

Thanks,

Matt M.