Quality work

Already a big and pleasant surprise, all the texts it contains are in the audio CD. We can quickly become familiar with the rhythm of the language, see the words while hearing them, which frankly is a plus since they are taught the correct pronunciation simultaneously.
With a book without audio we tend to pronounce it a completely so distant from reality and thus retain something potentially wrong.
It is important not to be destabilized if we do not understand all of a sudden, the ear adjusts to progressively and sometimes without even realizing it.
I will say that this book can be accessible to all, provided of course to have bases.
I recommend it without hesitation.