13:00Andy PotterGardening expert Mark Smith and Derbyshire author Joanna CannonBBC Radio Derby Duration: 3 hours Wed 27th Jan 2016, 13:00 on BBC Radio DerbyWe meet Ashbourne author Joanna Cannon who left school with only one O-level but went on to become a doctor in psychiatry at the age of 40.GenresEntertainmentBrandAndy Potter Source: BBC Online