A four-level Spanish language course for high school students and adults, from beginner level A1A2, through B1B2, to advanced level C1, in accordance with the program requirements set by the Cervantes Institute and the European System of Education for Languages. The material available in the first three parts allows for 120 to 150 teaching hours, while the last part covers 180 hours. The course is primarily intended to prepare students for active participation in linguistic communication, hence the emphasis on developing social and cultural competences as well as strategies for self-assessment of learning progress. A workbook with an audio CD and an interactive CDROM. 12 chapters containing material correlated with the content of the textbook. Exercises for individual or classroom work. Self-assessment exercises based on verification of skills. Their solutions. Exercises to check preparation for the DELE exam. pronunciation and correct spelling, transcription of all recordings and answer key, audio CD and CD ROM with exercises to test the acquired knowledge, multilingual dictionary and the Salamanca Spanish dictionary.