This accessible textbook offers students the opportunity to explore for themselves a wide range of sociolinguistic issues relating to the Spanish language and its role in societies around the world. It is written for undergraduate students who have a sound practical knowledge of Spanish but who have little or no knowledge of linguistics or sociolinguistics. It combines text with practical exercises and discussion questions to stimulate readers to think for themselves and to tackle specific problems. In Part One Clare Mar-Molinero discusses the position of Spanish as a world language, giving an historical account of its development and dominance. Part Two examines social and regional variation in Spanish, and investigates dialects, language attitudes, and style and register, particulaly in the media. The author also questions the relationship between gender and language. Part Three focuses on current issues, particularly those arising from language policies and legislation, especially in the education system, in Spain, Latin America and the USA.