According to many science fiction books and movies, antimatter is dangerous stuff, stuff that would blow up if it comes into contact with normal matter. Antimatter and normal matter will annihilate one another in a burst of energy, and if that burst could be captured, antimatter would provide vast amounts of power. Enhanced by detailed diagrams and illuminating sidebars, this engaging text uses comprehensible analogies to everyday experiences to introduce the forms of matter in our universe, the forms of antimatter, and how an understanding of antimatter can provide insight into the very structure of the universe.