Stephen Day has written in the past for a number of journals and periodicals, includingNew Scientistand is co-author ofMechanisms in Plant Development(Blackwell Science, 2002). Professor John Parker is Director of the Botanic Garden at Cambridge University. He was been directly involved in the planning and development of the new Sainsbury Laboratory. Steve Rose was appointed Professor of Biology and Director of the Brain and Behaviour Research Group at the Open University, where he is now Emeritus Professor. He has held visiting appointments at Harvard, the University of Minnesota, the San Francisco Exploratorium and most recently at University College, London.