Explore listening and speaking is an exciting new series, provided 2 levels A1-A2 and B1-B2.
It includes 10 units, altogether 40 modules. It contains useful vocabulary, and conversation about the topics of the main book, to cover the main book by extra vocabulary and conversation. It helps students to improve their speaking and listening knowledge in all areas. 

It tries to teach new things based on the topics of main book.