It is called “Argumentative text ” a text whose writer presents his opinions about a topic. The argumentation must be clear and sustained by qualitative and quantitative arguments and reasoning. The writer have to take notes about the advantages and disadvantages the topic he is going to write about, then organise and expand them into a full text and finally take a conclusion. An argumentative text is organized into three parts:  
1)Introductive paragraph: it introduce the text and what the writer has to do; 
2) The Body: in this paragraph the writer exhibits and explains his concepts and his argumentations; 
3) Conclusion: it is the last paragraph in which the author resume what he had decided and what idea he has got.