By default Quick Search will retrieve books, articles, and more related to your search term.
If you are looking specifically for books check off the box 'Items in the Library Catalogue' under 'Refine your Search.'
To limit your search to eBooks go to 'Refine your search' on the left hand side of the results. Under 'Content Type' check off the box next to 'UOIT eBook'. This will refresh your results and you will only see electronic books.
Choose a book title to get the full record for the book, including the link to the eBook.