Structural engineer Roma Agrawal examines seven of the mightiest engineering achievements: the nail, wheel, spring, magnet, lens, string, and pump. In her examination of these basic—but essential—building blocks, she shares her deeply personal experience and highlights the little-known contributions of women and engineers from non-Western cultures. For example, did you know that women were among the most industrious nail makers in pre-industrial Britain? Eye-opening and engaging, Nuts & Bolts shows how engineering has fundamentally changed our lives.