How important interviews are?

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I met a reader and she was discussing with me an article she had just read in a Spanish magazine about me. She told me that she kept on reading the same things in my interviews. Of course, she has read all of my books and follows my career. Yet, she’s right to have this feeling given that journalists always repeat the same questions, over and over again.
So here is my question of the week for you: How important interviews are?