Once you have created your account Ebook Central allows you to download books to your computer or mobile device for a loan period that you select.
In order to read these books, your device must have Adobe Digital Editions or another app that supports Adobe DRM.
DRM stands for digital rights management. Simply put, it is digital protections for those that hold the copyrights for a specific book. DRM prevents that book from being shared or otherwise distributed without the copyright holder's consent.