Ever since I moved into this neighbourhood 8 years ago, Doug Miller Books has been one of my favourite shops to frequent. They just recently moved across the street to a bigger store and its fantastic! He has an amazing collection of fiction, comics, manga and children's books. When speaking to him he told me that he actually has a lot of rare books as well.
On the rare occasion that I haven't found I book I was looking for, Doug actually offered to order it for me and then phone me when he had it in stock.
100% recommend this place just for the experience of being in a cozy shop crammed with books. You also can't beat the prices.
P.S. The lego counter is awesome