When you find an ebook by searching OneSearch or the library catalog, click on the title of the book in the results or the "Online access" link and you will be taken into the record. Click on the link next to where it says "Full text available at:" under Online Access you will be taken to the ebook. If you are off campus, you will be prompted to enter your NSHE # and password first.
For most ebooks, you have the option of viewing the entire ebook online, or downloading sections/chapters which can be printed.