German born Barr qualifies and worked as a Medical Lab Technologist before she arrived in the Waikato in 1994. In 2003 She had the opportunity to take part in the Matamata Sculpture Symposium and discovered her passion for carving stone.

Eager to learn more about other sculptural media Barr enrolled to learn the craft of glass casting using the lost wax method at Art Station in Auckland for 2 years 2008/2009. Over the coming years she attended national and international Master classes to extend her knowledge in sculptural glass making. Karin's work is held in the Wallace Arts Trust and other private collections nationally and internationally.

Barr regularly exhibits in NZ, Australia and Germany. Her purposely built studio is located on a farm in Tauhei.