Introduction by Sheldon Glashow A great little book, and if every physics textbook were like this, physics classrooms would be crowded. Scitech Book News With hardly a mathematical formula, Ms. Schwarz clearly explains the substance of elementary particle physics. The book guides readers through the subatomic zoo populated by some of the most dramatic discoveries of modern science--notably, quarks, leptons, and the basic forces that govern their interactions. Most important, this tour is conducted in terms that are easily understood--even by readers who have no prior particle physics background. Each chapter in this book begins with an overview of concepts and ends with a summary and self-tests to help teachers gauge students' understanding.