Moving this discussion to the Adobe Digital Editions forum.
Thekazido please see View e-books | iOS, Android devices - http://helpx.adobe.com/digital-editions/kb/view-e-books-ios-android.html which discusses this topic.
There are several generic apps.
Look into Bluefire or Aldiko, and if you are specially interested in library books into Overdrive.
Depending on details you may not need to go near your computer to borrow/buy, download and read an eBook.