In this final London instalment, our host Jonathan Heaf orders room service with award winning journalist and broadcaster Emma Barnett. Emma became the youngest person to host Woman's Hour on BBC Radio 4 at just 26 years old. She now hosts her own show on Radio 5 Live, writes a column for the Sunday Times and she can regularly be seen putting politicians through their paces on Newsnight. Emma and Jonathan chat about her career, surprising radio phone-in guests, and why she needed to write her new book; Period.