Extensive reading and English graded readers. Analysis of different systems of classification

Intensive and extensive reading remain two of the teaching practices aimed at improving comprehension; the latter, often with the help of graded books initially considered as a means of adapting to the students' linguistic competence and their needs. However, the criteria used by the big publishers for the classification are not always consistent. Furthermore, the widespread availability of the internet and digital materials advise the teacher to use a variety of criteria, since authentic materials or texts for learning English as a first language (L1) are available to be used with learners of English as a second language (L2) or as a foreign language (EFL). A combination of criteria will give us a more complete picture for choosing graded books.