Everything around us – trees, buildings, food, light, water, air and even ourselves – is composed of minute particles, smaller than a nanometer (a billionth of a meter). Quantum physics is the science of these particles and without it none of our electronic devices – or anything else – would exist. In this book, children will discover this amazing world through the beautiful and engaging illustrations by award-winning Eduard Altarriba. They will find the answers to some complex questions including: How can atoms exist in two places at once? And just how can a cat be dead and alive at the same time? This fascinating guide is the perfect introduction to the mysterious science of quantum physics.