Personality: Katya Adler talks to Simon Hattenstone

For the second in this interview series about personality - what it is, how it's formed and how it can change - Katya Adler talks to Simon Hattenstone, features writer at The Guardian newspaper. For over two decades, Simon has interviewed famous personalities, pulling back their masks to reveal the essence beneath - what motivates them, what drives them, what they are really like. Katya talks to Simon about how he tries to get under the skin of his interviewees, how the personalities of his interviewees change and what place there is in the interview for the personality of the person asking the questions. Producer: Camellia Sinclair