'ElExpres - Nueva edicion' offers an intensive study course perfect for HS and college students wishing to progress quickly in spanish. It covers the CEFR levels A1-A2-B1 and is an action-based approach to learning Spanish. The student's book contains 27 units in total, which are clearly structured into 3 sections as follows: 'Empezamos', 'Avanzamos' and 'Ampliamos'. The first 15 units correspond to CEFR levels A1 and A2 and contain 4 pages each. The next 12 units (16-27) correspond to level B1 of the CEFR and contain 6 pages each as the reading and listening exercises are more extensive. The exercise book is designed to help students reinforce their understanding of the content covered in the student's book. The teacher's guide and the entire audio content can be downloaded for free from the publisher's website.