Kirsty Young asks fascinating people what advice they would give their younger self. Authors, artists, actors and filmmakers are among those revisiting the moments that made them.

Ros speaks to one of US President Barack Obama’s former speechwriters, Sarada Peri. We all communicate multiple times a day but could we be getting better results? From a simple text or phone call, to a job interview or big presentation, the way we express ourselves and get our point across can...