Backlisted , the fortnightly British podcast about books, has reached its 100th episode and topped a million downloads. Presented by the author Andy Miller and the founder of crowdfunded publishers Unbound, John Mitchinson, it casts a spotlight on the literary works of yore by asking an author to choose their favourite book. It’s a measure of the series’ growing profile that the latest guest is Philip Pullman, the award-winning author of the His Dark Materials trilogy, who is interviewed at his kitchen table.