There are two official languages in Catalonia: Catalan and Spanish, and there are more and more people in the region who understand and speak English. You're sure to get by.
Wherever you are in Barcelona, there's always something to see: jewels of Catalan art nouveau, modernisme, and contemporary architecture, markets that are a treat for the senses, ancient Roman and medieval treasures…Barcelona and its metropolitan area offer a wide range of public transport options, so you can get to where you want to go in the city easily and conveniently.