Rowling discussed numerous subjects, from her love of rugby and shoes to her mother's death from Multiple Sclerosis--and yes, "Harry Potter".
“Yes, she didn't know, she never knew about Harry Potter--I started writing it six months before she died, so that is painful,” Rowling said. “I wish she'd known."
“My mother was a passionate reader, and she would have been excited whatever I did, if I succeeded at anything, but particularly to be a writer, she would have considered that to be a very valuable thing.”
Rowling also discussed her charity Lumos, which works to end and change the systematic institutionalisation of children across Europe, as well as her first exposure to the problem, which led to the creation of the charity.
"I want to use my power for good and not for evil," Rowling said of her influence and financial privilege.
You can listen to the full episode now through BBC Radio.
Rowling was the first guest editor of the program in 67 years, and others will follow for the rest of this week.