'… probably the most comprehensive tome on the subject around at the moment and, like the others, I imagine it will have a long shelf-life … this well-constructed collection of writings is the best we can possibly hope for in the era of this new great debate.' Pedro Ferreira, Physics World
'This book really does lie at the frontier of cosmology, philosophy and possibly even theology. It is essential reading for anyone who wants to consider these ideas in depth.' Martin Redfern, Science, People and Politics
'Reading this book is a complex and rich experience. I find it useful as recommended reading as an introduction for undergraduate students.' Luca Valenziano, CERN Courier
'… an essential acquisition for those requiring an up to date account of the various physical proposals and their problems.' Science and Christian Belief
Is our universe unique or just one of many? Eminent physicists explain how recent scientific developments lead to the 'multiverse' proposal. Suitable for professional physicists and scientifically-minded lay people, the articles reflect the full diversity of views on this highly speculative and untestable theory.