From the bestselling author of The Elegant Universe, Brian Greene''s The Fabric of the Cosmos takes us on an irresistible and revelatory journey through the biggest of the big questions. What is reality? Could we exist without space and time? Can we travel to the past? What are the limits of the universe? Brian Greene has made the mysteries of space and time accessible to millions with his acclaimed writings and award-winning TV series. Now he reveals a world more beautiful and bizarre than we could have imagined, where ''dark matter'' reigns, space warps and wiggles through eleven dimensions, minute particles dance, fizz and teleport across vast distances, everything is made of vibrating strings and, like an ant on a lily-pad, we may be floating on a sliver of spacetime. Revealing new layers of reality that lie just beneath the surface of our everyday lives, this grand tour of the universe will make you look at the world in a completely new way. ''A must-read''  Sunday Times ''Greene takes us to the limits of space and time''  Guardian ''Sends the reader''s imagination hurtling through the universe on an astonishing ride''  The New York Times Brian Greene is well known to many fans as a populariser of theoretical physics. He is the author of the bestselling books about string theory, The Elegant Universe, which was a finalist for the Pulitzer Prize for nonfiction, The Fabric of the Cosmos, and The Hidden Reality. Educated at Harvard and Oxford, he has taught at both Harvard and Cornell and has been Professor of Physics and Mathematics at Columbia University since 1996.