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The long-awaited third installment in Theodore Gray´s iconic "Elements" trilogy. The first two titles, Elementsand Molecules, have sold more than 1.5 million copies worldwide.

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The third book in Theodore Gray´s bestselling Elements Trilogy, Reactions continues the journey through the world of chemistry that began with his two previous bestselling books The Elements and Molecules.
With The Elements, Gray gave us a never-before-seen, mesmerizing photographic view of the 118 elements in the periodic table. In Molecules, he showed us how the elements combine to form the content that makes up our universe. With Reactions Gray once again puts his one-of-a-kind photography and storytelling ability to work demonstrating how molecules interact in ways that are essential to our very existence. The book begins with a brief recap of elements and molecules and then goes on to explain important concepts the characterize a chemical reaction, including Energy, Entropy, and Time. It is then organized by type of reaction including chapters such as "Fantastic Reactions and Where to Find Them," "On the Origin of Light and Color," "The Boring Chapter," in which we learn about reactions such as paint drying, grass growing, and water boiling, and "The Need for Speed," including topics such as weather, ignition, and fire.

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Theodore Gray is the author of The Elements, Molecules, and Reactions, as well as Theodore Gray´s Completely Mad Science and the forthcoming How Things Work. He is the creator of the bestselling iPad apps "Elements" and "Molecules," which have both been named "App of the Week" by Apple and was Director of "Disney Animated" (also honored by Apple as "iPad App of the Year"). Gray appeared on stage with Steve Jobs several times in his capacity as a software creator. He also co-founded Wolfram Research, Inc., makers of the widely-used software Mathematica and the Wolfram Alpha website. He lives in Urbana, Illinois.
Nick Mann is a photographer specializing in taking beautiful photos of inanimate objects on black backgrounds. His other work includes Molecules, Reactions and How Things Work. Originally of Urbana, IL, he lives in Champaign, IL and North Liberty, IA, where he is working towards a geology degree at Cornell College.

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