"Some of humanity's mightiest engineering achievements are small in scale -- and, without them, the complex machinery on which our modern world runs would not exist. In Nuts and Bolts, structural engineer Roma Agrawal examines seven of these extraordinary elements: the nail, the wheel, the spring, the magnet, the lens, the string, and the pump. Tracing the evolution from Egyptian nails to modern skyscrapers, and Neanderthal string to musical instruments,...

An award-winning social psychologist discusses how companies and organizations can foster a "growth" mindset, where talent and intelligence can be nurtured, with case studies from the outdoor retailer Patagonia, Microsoft and the New York City school system.