John Parrington is an Associate Professor in Molecular and Cellular Pharmacology at the University of Oxford, and a Tutorial Fellow in Medicine at Worcester College, Oxford. He is the author of The Deeper Genome (Oxford University Press, 2015) and Redesigning Life (Oxford University Press, 2016), and has published over 100 peer-reviewed articles in science journals including Nature, Current Biology, Journal of Cell Biology, Journal of Clinical Investigation, The EMBO Journal, Development, Developmental Biology, and Human Reproduction. He has extensive experience writing popular science, having published articles in The Guardian, New Scientist, Chemistry World, and The Biologist. As a British Science Association Media Fellow he worked as a science journalist at The Times; he has also written science reports for the Wellcome Trust, British Council, and Royal Society, and spoken about science to audiences at national events and festivals.