This document discusses language and social class. It examines accents, dialects, and how factors like education, income, occupation and wealth determine social class. It describes William Labov's study of pronunciation of /r/ in department stores of different social classes. Labov found higher rates of /r/ pronunciation among upper-class customers and salespeople compared to middle and lower classes. The document concludes that language variation often reflects a speaker's social class, with lower classes using non-standard dialects and upper classes using standard dialects.