Book Reports / How to describe graphs in an oral presentation? [3]

I will give a 5-minite oral presentation the day after tomorrow, my topic is "The current situation of the newspaper industry" and I am supposed to describe the graphs below and simply analyse them in the presentation.(But the main part is the describtion).

I am really confused of describing them...Could you give me an example?I will really appreciate it if you can help me.Thank you! :)

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