Godel, Escher, Bach

I have finally finished the book Godel, Escher, Bach: An Eternal Golden Braid. It has taken me only 2 years to finish as I've been reading it at lunch times in between other books and it is a bear of a book to get through. Info about the book can be found at the Wikipedia Entry. I enjoyed the book but will of course need to take another few years to re-read it.