When I was in university, I used to visit their former location which wasn't all on one level, and you had to be careful going up and down the stairs because there were books stacked on every one. This is a great place to spend a rainy afternoon. If you're in a hurry to find something specific, you can ask the staff -usually a couple of bearded, sweater-wearing guys who look almost comically like the stereotypical bookish types. Somehow they can usually navigate their way around the untidy stacks and lay their hands upon what you're looking for. But it's best to go when you've got lots of time to dig around and find treasures... there are a lot of first editions and antique books which I just stare at longingly. Sigh. Last Christmas, one of my sisters (she knows me well) gave me an edition of 'Tom Brown's School Days' from 1900 and an 'Uncle Remus' from 1916 which she picked up at JWD.
It lacks the charm of visiting the actual location, but JWD does have a website: www.DoullBooks.com .