Krakow is absolutely an English-friendly city. In addition to being one of the most popular tourist destinations in Europe, the city is home to many English speakers. Most signs in the city are written both in Polish and English, and most locals in Old Town speak at least a little English - making it easier to communicate during your trip. Even if you don't speak any Polish, navigating the city and understanding menus and instructions should be a breeze. As an added bonus, most museums and attractions offer audio guides in English.