Reasons for buying textbook named "Postcards3"

If I were the English teacher in M.3 level, I would buy this textbook named Postcards3 .As it has completely contents for guiding teaching English in class such as English grammar in used with the interesting dialogue then focused on appropriate rule and practice finally, focused on communication area e.g. ask students to do role play , creat short conversation etc. Moreover, each contents or units can tell the learning gold cleary e.g. in every units it contains communications about ...., Grammar about..., and vovabulary. In same way it can made the teachers to known what do we teach for each learning golds. Apart from that photos which are used like assmbled examples in each units are distinctness photos. I think when we teach the students with the appropiate photos ,of course! it can help them to understand more about what they are going to learn. This textbook is quite good for teacing English.