Metodo que consta de dos niveles correspondientes al MCER: B2; C1. Prepara a los estudiantes para comunicarse en contextos hispanohablantes con fl uidez; naturalidad. Trabaja con el estudiante la correcta organizacion, articulacion; cohesion del texto. Estructura de la unidad en torno a nucleos tematicos. Ofrece un trabajo inductivo de los contenidos linguisticos. Utilizacion de documentos auditivos autenticos. Atencion a los aspectos socioculturales, pragmaticos; sociolinguisticos. This series consists of two books: A fondo, Nivel avanzado (Advanced level) and A fondo, Nivel superior (Higher level). These levels are equivalent to the B2 and C1 levels of the Common European Framework of Reference. Each book contains nine lessons, structured around a thematic core that deals with subjects such as emigration, the labor world, the radio, the environment, etc. The written and oral materials are original and come from news released by the press. Each unit is divided into three sections: grammar, vocabulary and functions. Students will work on oral and written comprehension and expression. The authors have also focused on sociocultural and sociolinguistic aspects of the language. In addition, there is a revision section every three units and another one to encourage learners to read literary texts.