This comprehensive, fully revised hardcover dives into how and why everyday machines workfrom ancient mechanical marvels to modern tech like touchscreens and 3D printers. David Macaulays signature style blends humorous woolly mammoths with clear, richly colored illustrations to explain principles of physics and engineering in an engaging and accessible way. Organized thematically, each chapter covers concepts like levers, gears, electricity, and digital systems, culminating in a survey of modern inventions. Ideal for curious readers aged 10 and up, it combines scholarly depth with playful narrative. At over 400 pages, its both a superb reference and an inspiring visual journey into science.