We think about ancestors, history and industry in this episode. First off, we talk with Louise Welsh about her Merchant City Voices project which explores Glasgow’s Merchant City’s relationship with the north Atlantic Slave Trade. “This city has blood in the mortar.” We also feature visual artist Rebecca Gouldson, whose exhibition Industrial Shift is currently at Edinburgh Printmakers. And finally there’s an exclusive preview of our next Book Talk podcast for the Scottish Book Trust – out Wednesday 2 April.