ïAvancemos!: 2 Dos, Student Edition 2007 (Spanish Edition)

From Introduction - Deciding to learn Spanish is one of the best decisions you can make if you want to travel and see the world. More than 400 million people around the globe speak Spanish. Inside the United States, Spanish is by far the most widely spoken language after English. There are currently about 30 million Spanish speakers in the U.S. Learning a language is more than just memorizing words and structures. When you study Spanish, you learn how the people who speak it think, feel, work and live. Knowing Spanish opens many doors.