• INTERMEDIATE-MIDDLE LEVEL

You will manage to fluently use another 1100 words, besides the 2200 you have already acquired, those students who reach the end of book 3(Plus3) will have achieved a middle to high level in the English language. This book focuses on those areas corresponding to the needs of the students themselves with an outstanding fluency in the basic structures of the language, structures which they will need to use in varied circumstances within social and professional contexts.

• INTERMEDIATE-HIGH LEVEL

Book 4(Plus4) is a course of a reasonably high level which centres on and enlarges the handling of general grammar and general structures of the English language. In this textbook the student will learn another 900 new words and expressions, also helping the student to understand, capture and make use of the different forms of the language (formal ,familiar ,colloquial ,etc.), which is fundamental for those students wanting to use the language at these higher levels

• ADVANCED LEVEL

Book 5 is designed for students with a high fluency in the language. It deals with a variety of vocabulary which stems in two parallel lines: the formal or standard language found in academic circles, related to debates or business and, on the other hand, the more familiar or day-to-day language; rich in set expressions and idiomatic phrases needed by those persons who live or work where "real English" is a must.