Kirsten Birkett has worked for the Universities of New South Wales and Sydney as a tutor in philosophy of science and in Christian publishing. Her publications—including Unnatural Enemies: An Introduction to Science and Christianity (Matthias Media, 1997)—address the relationships between science and religion, and she has also written on psychology, feminism, and the family for both a popular and academic audience. She currently teaches pastoral counseling, apologetics, and church history at Oak Hill Theological College in London.