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A pop science look at time travel technology, from Einstein to Ronald Mallett to present day experiments. Forget fiction: time travel is real.

In How to Build a Time Machine, Brian Clegg provides an understanding of what time is and how it can be manipulated. He explores the fascinating world of physics and the remarkable possibilities of real time travel that emerge from quantum entanglement, superluminal speeds, neutron star cylinders and wormholes in space. With the fascinating paradoxes of time travel echoing in our minds will we realize that travel into the future might never be possible? Or will we realize there is no limit on what can be achieved, and take on this ultimate challenge? Only time will tell.

Science fiction is a vital part of popular culture, influencing the way we all look at the world. TV shows like Star Trek and movies from Forbidden Planet to Inception have influenced scientists to enter the profession and have shaped our futures. Science fiction doesn't set out to predict what will happen - it's far more about how human beings react to "What if?..." - but it is fascinating to see how science fiction and reality sometimes converge, sometimes take extraordinarily different paths.

Ten Billion Tomorrows brings to life a whole host of science fiction topics, from the virtual environment of The Matrix and the intelligent computer HAL in 2001, to force fields, ray guns and cyborgs. We discover how science fiction has excited us with possibilities, whether it is Star Trek's holodeck inspiring makers of iconic video games Doom and Quake to create the virtual interactive worlds that transformed gaming, or the strange physics that has made real cloaking devices possible. Mixing remarkable science with the imagination of our greatest science fiction writers, Ten Billion Tomorrows will delight science fiction lovers and popular science devotees alike.

In biological terms human beings haven't evolved in 100,000 years - but thanks to our amazing brains, we are able to upgrade ourselves to add capabilities that have taken other creatures millions of years to evolve. Thanks to this "unnatural" evolution, we are already Human 2.0.

In an effort to live longer, become more attractive to the opposite sex, be better able to defend ourselves, make the most of our brains, repair damaged bodies, we have transformed ourselves.

To do this, we have done many things: created artificial skin in the form of clothing, for instance. In the future we will clone human organs for transplants, and use nanotechnology to provide support for failing functions in the human body.

Now, with a better understanding of the mechanisms of the body, cloning, gene therapy, bionics and other technologies, the rate at which we are changing is becoming ever faster. This process of upgrading is nothing new. It has been around for millennia, and it raises some challenging questions.

Sure to cause much debate, Upgrade Me is award-winning popular science author Brian Clegg's ambitious account of humanity's need to upgrade.