This bookseller is amazing. They stock everything from old sci-fi, to literature, to non-fiction.
In a post-book world (if you believe the Kindle readers), O'Connell's is a bastion of culture.

There is nothing like reading a book, with it's smooth pages which whisper as you turn them. Nothing smells like a book, and O'Connell's book shop has a special smell all of its own: it smells like knowledge and history.

If you like books, O'Connell's is one of the last of the old style second-hand bookstore. It gives an experience too rare these days... come and peruse the books, and find a new experience hidden away within the pages!