We encounter friction in our lives every day--at home, in school, at work, and at play. Readers are introduced to friction, its characteristics, and how it works in the world around us. Through clear explanations, concrete examples, and attention-grabbing photos, the author shows how this physical force operates and how it can work to both our advantage and disadvantage. Readers will be fascinated to learn the role friction plays in nature, in sports, in transportation, and many other domains.