Dozens of bookstalls crowd this square daily. It's mostly Bulgarian novels, but there are plenty of books on Bulgarian history, culture and cuisine available in foreign languages, as well as some secondhand English …
Offers a small selection of foreign-language souvenir books about Bulgaria, as well as guidebooks, maps and music CDs. There's a cafe in the basement.
One of the better selections of English-, French- and German-language novels, with a little cafe on-site.
Good range of English-language fiction plus books on Bulgaria in various languages.