When I looked at the Google Book Search it went straight to various categories which you could highlight and find books of interest to you.
Then when I inserted the words 'Works by Shakespeare' in the top toolbar, the first 10 of 427555 items on 'Works byShakespeare' appeared. I didn't bother scrolling down to the last title. I reckon you would need to know the exact ebook you wanted as the site is so large.
The list didn't seem to be in any order but you could look at 3 different views. Each viewing box itemized the titles in a different format. The same extra tabs were on each viewing.
To me it was all a very uninteresting subject - too big, but a wonderful site for resourcing ebooks.