Introduce curious kids to maker-style engineering with this hands-on activity book designed for ages 9+. Packed with step-by-step photographic instructions and easy-to-find cardboard and household tools, Cardboard Box Engineering turns ordinary boxes, tubes, and sheets into working projects — from a kaleidoscope and marble roller coaster to a robotic hand and a wind-powered tractor with cardboard gears. Each project teaches core STEAM concepts and 3-D thinking while encouraging creativity, design problem-solving, and eco-friendly reuse. Perfect for independent makers, classroom projects, or family build sessions, this book inspires playful invention and practical engineering skills in young tinkerers.