When an abandoned 20-story building needs to be safely demolished and reduced to 80,000 tons of rubble, who do you call? Master blasters! These are the engineers who use precisely placed explosives to blast new subway tunnels under cities and demolish skyscrapers, towers, and bridges. Readers will discover how explosives engineers use science, math, and technology to plan and execute intricate sequences of explosions in demolition and construction projects. Told in a lively narrative style, this book includes firsthand accounts of the daily work of master blasters, entertaining anecdotes, cool facts, and behind-the-scenes images. Readers will also get the chance to try out fun math and engineering projects.