Hugo Vickers on The Quest for Queen Mary by James Pope-Hennessy, which he edited.
He spoke about the book's 60-year journey to publication, James Pope-Hennessy's inimitable style and the understated way to describe large royals.
Vickers's fellow speakers were Prue Leith (Prue: My All-Time Favourite Recipes) and Matthew Sturgis (Oscar: A Life).