All of these programmes offer initial vocational and education training, although the recurrent studies also offer general education. Recurrent education consists of non-regular programmes of study or modular or single units because they are not complete training cycles and they are not included in the regular progression of the education system. The recurrent education provides a second opportunity of training for those who did not undertake training at the normal age or who left school early. Recurrent education covers the three cycles of basic education and the secondary education.