The new English learning series i5 (incredible 5) by Express Publishing consists of 3 levels (i5 1, i5 2, i5 3) corresponding to language proficiency levels A1, A2, B1 and is aimed at teenagers. It is a series that captivates young students while aligning with language proficiency levels. 

• Exciting dialogues that motivate students 
• Practice of written and oral speech, listening comprehension, and text comprehension in every lesson 
• Songs and games 
• Exercises that help students develop critical thinking 
• "Green" sections that promote respect for the environment 
• Myths and Mysteries that enchant young students