The best-selling novelist of all time, Agatha Christie continues to draw readers in. No matter how much time passes since Christie's last novel, books keep selling while TV and film adaptations abound.

So, in this episode of Southampton Solent University's ...explained! podcast, leading Agatha Christie historian, Dr Mark Aldridge is on hand to answer why. An Associate Professor of Screen Histories at Solent, Mark is also the award-winning author of non-fiction novels exploring the life and work of Christie.

From the novelist's own mysterious life to the enduring appeal of her characters, this episode is a deep dive into everything Agatha Christie.