My guest on this week's Book Club podcast is the Ukrainian novelist Andrey Kurkov – who has this year become one of the most articulate ambassadors to the West for the situation in his homeland. As a book of his recent writings, Diary of an Invasion, is published in English, he tells me about the experience of trading fiction for the "duty" of a public intellectual in wartime. As an ethnic Russian Ukrainian, he talks about what the West fails to understand about the profound differences between Russian and Ukrainian people, how their national literatures nourish and reflect these differences, how language itself has become one of the battlegrounds, and what Zelensky looked like to Ukrainians before he became a heroic war leader.