One of the most illuminating science books in years, Knocking on Heaven's Door makes clear the biggest scientific questions we face and reveals how answering them could ultimately tell us who we are and where we came from.

Lisa Randall is hugely gifted... Full of passion and jaw-dropping facts... Fascinating -- Doug Johnstone Independent on Sunday Her touch is light and deft; these are not topics that come easily to life, and they are unavoidably complex at times, but Randall's calm authority and clarity of explanation are exemplary -- Michael Brooks New Scientist An impressive study...essential reading for anyone interested in science -- Christopher Potter Sunday Times Dazzling ideas... Read this book today to understand the science of tomorrow -- Steven Pinker, Harvard College Professor And Author Of How The Mind Works Science has a battle for hearts and minds on its hands... How good it feels to have Lisa Randall's unusual blend of top flight science, clarity, and charm on our side -- Richard Dawkins, Author Of The God Delusion

Professor Lisa Randall studies theoretical particle physics and cosmology at Harvard University. Randall's studies have made her among the most cited and influential theoretical physicists. She has also had a public presence through her writing, lectures, and radio and TV appearances. Her book Warped Passages: Unraveling the Mysteries of the Universe's Hidden Dimensions was included in the New York Times' 100 notable books of 2005. Professor Randall was included in the list of Time magazine's '100 Most Influential People' of 2007 and was featured in Newsweek's 'Who's Next in 2006' as 'one of the most promising theoretical physicists of her generation'. Randall has received numerous awards and honors for her scientific endeavors. She is a member of the National Academy of Sciences, the American Philosophical Society the American Academy of Arts and Sciences. Randall is an Honorary Member of the Royal Irish Academy and an Honorary Fellow of the Institute of Physics.