Barbara's Bestsellers is located in the center of South Station. It appears to be a small kiosk, but I have consistently been surprised that they have had every book I've looked for, every time I've stopped by. I love browsing the books while waiting for commuter trains... it is much better than buying a magazine or something from the newsstand. Everyone that works there is so nice. I used to work next door and would stop by frequently on my lunch breaks. Although I didn't speak to the staff too often, they began to recognize me after a while and whenever I'd buy a book, they'd give me the "good friends" discount. I always appreciated the gesture very much! They have staff recommendations on the inside corners of the store, which are always fun to read.